2021 NCAA Division I FBS football rankings#CFP rankings
{{Short description|none}}
{{Use mdy dates|date=August 2023}}
{{Infobox NCAA football rankings
| season = 2021
| image = NCAA logo.svg
| image_caption =
| preseason_number_1 = Alabama
| champions = Georgia
| conference = SEC (5)
}}
Two human polls and a committee's selections comprise the 2021 National Collegiate Athletic Association (NCAA) Division I Football Bowl Subdivision (FBS) football rankings, in addition to various publications' preseason polls. Unlike most sports, college football's governing body, the NCAA, does not bestow a national championship at the FBS level. Instead, that title is bestowed by one or more different polling agencies. There are two main weekly polls that begin in the preseason—the AP Poll and the Coaches Poll. One additional poll, the College Football Playoff (CFP) ranking, is usually released starting midway through the season. The CFP rankings determine who makes the four-team playoff that determines the College Football Playoff National Champion.
Legend
| style="border:1px solid black;" |
| style="background:#D8FFEB; width:20px; border:1px solid black;" |
| | Increase in ranking |
| style="background:#FFE6E6; width:20px; border:1px solid black;" |
| | Decrease in ranking |
| style="background:#FFFFE6; width:20px; border:1px solid black;" |
| | Not ranked previous week |
| style="background:#9cf; width:20px; border:1px solid black;"|
| | Selected for College Football Playoff |
| {{center|(#–#)}}
| | Win–loss record |
| {{center|(Italics)}}
| | Number of first place votes |
| {{center|т}}
| | Tied with team above or below also with this symbol |
AP Poll
{{ColPollTable
|Week1 = 0
|Week2 = 1
|Week3 = 2
|Week4 = 3
|Week5 = 4
|Week6 = 5
|Week7 = 6
|Week8 = 7
|Week9 = 8
|Week10 = 9
|Week11 = 10
|Week12 = 11
|Week13 = 12
|Week14 = 13
|Week15 = 14
|Week16 = 15 (Final)
|Week1Date = Aug 16{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=1|title=AP Top 25 Poll, Pre-Season|website=APNews.com |date=August 16, 2021}}
|Week2Date = Sep 7{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=2|title=AP Top 25 Poll, Week 1|website=APNews.com |date=September 7, 2021}}
|Week3Date = Sep 12{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=3|title=AP Top 25 Poll, Week 2|website=APNews.com |date=September 12, 2021}}
|Week4Date = Sep 19{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=4|title=AP Top 25 Poll, Week 3|website=APNews.com |date=September 19, 2021}}
|Week5Date = Sep 26{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=5|title=AP Top 25 Poll, Week 4|website=APNews.com |date=September 26, 2021}}
|Week6Date = Oct 3{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=6|title=AP Top 25 Poll, Week 5|website=APNews.com |date=October 3, 2021}}
|Week7Date = Oct 10{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=7|title=AP Top 25 Poll, Week 6|website=APNews.com |date=October 10, 2021}}
|Week8Date = Oct 17{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=8|title=AP Top 25 Poll, Week 7|website=APNews.com |date=October 17, 2021}}
|Week9Date = Oct 24{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=9|title=AP Top 25 Poll, Week 8|website=APNews.com |date=October 24, 2021}}
|Week10Date= Oct 31{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=10|title=AP Top 25 Poll, Week 9|website=APNews.com |date=October 31, 2021}}
|Week11Date= Nov 7{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=11|title=AP Top 25 Poll, Week 10|website=APNews.com |date=November 7, 2021}}
|Week12Date= Nov 14{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=12|title=AP Top 25 Poll, Week 11|website=APNews.com |date=November 14, 2021}}
|Week13Date= Nov 21{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=13|title=AP Top 25 Poll, Week 12|website=APNews.com |date=November 21, 2021}}
|Week14Date= Nov 28{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=14|title=AP Top 25 Poll, Week 13|website=APNews.com |date=November 28, 2021}}
|Week15Date= Dec 5{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=15|title=AP Top 25 Poll, Week 14|website=APNews.com |date=December 5, 2021}}
|Week16Date= Jan 11{{cite web|url=https://apnews.com/hub/ap-top-25-college-football-poll?week=16|title=AP Top 25 Poll, Final|website=APNews.com |date=January 11, 2022}}
|Week1-1 = Alabama (47)
|Week1-2 = Oklahoma (6)
|Week1-3 = Clemson (6)
|Week1-4 = Ohio State (1)
|Week1-5 = Georgia (3)
|Week1-6 = Texas A&M
|Week1-7 = Iowa State
|Week1-8 = Cincinnati
|Week1-9 = Notre Dame
|Week1-10 = North Carolina
|Week1-11 = Oregon
|Week1-12 = Wisconsin
|Week1-13 = Florida
|Week1-14 = Miami (FL)
|Week1-15 = USC
|Week1-16 = LSU
|Week1-17 = Indiana
|Week1-18 = Iowa
|Week1-19 = Penn State
|Week1-20 = Washington
|Week1-21 = Texas
|Week1-22 = Coastal Carolina
|Week1-23 = Louisiana
|Week1-24 = Utah
|Week1-25 = Arizona State
|Week2-1 = Alabama (1–0) (59)
|Week2-1-Color =
|Week2-2 = Georgia (1–0) (3)
|Week2-2-Color = u
|Week2-3 = Ohio State (1–0)
|Week2-3-Color = u
|Week2-4 = Oklahoma (1–0)
|Week2-4-Color = d
|Week2-5 = Texas A&M (1–0)
|Week2-5-Color = u
|Week2-6 = Clemson (0–1)
|Week2-6-Color = d
|Week2-7 = Cincinnati (1–0)
|Week2-7-Color = u
|Week2-8 = Notre Dame (1–0)
|Week2-8-Color = u
|Week2-9 = Iowa State (1–0)
|Week2-9-Color = d
|Week2-10 = Iowa (1–0)
|Week2-10-Color = u
|Week2-11 = Penn State (1–0)
|Week2-11-Color = u
|Week2-12 = Oregon (1–0)
|Week2-12-Color = d
|Week2-13 = Florida (1–0)
|Week2-13-Color =
|Week2-14 = USC (1–0)
|Week2-14-Color = u
|Week2-15 = Texas (1–0)
|Week2-15-Color = u
|Week2-16 = UCLA (2–0)
|Week2-16-Color = npr
|Week2-17 = Coastal Carolina (1–0)
|Week2-17-Color = u
|Week2-18 = Wisconsin (0–1)
|Week2-18-Color = d
|Week2-19 = Virginia Tech (1–0)
|Week2-19-Color = npr
|Week2-20 = Ole Miss (1–0)
|Week2-20-Color = npr
|Week2-21 = Utah (1–0)
|Week2-21-Color = u
|Week2-22 = Miami (FL) (0–1)
|Week2-22-Color = d
|Week2-23 = Arizona State (1–0)
|Week2-23-Color = u
|Week2-24 = North Carolina (0–1)
|Week2-24-Color = d
|Week2-25 = Auburn (1–0)
|Week2-25-Color = npr
|Week2Dropped = {{ubl|LSU|Indiana|Washington|Louisiana}}
|Week3-1 = Alabama (2–0) (60)
|Week3-1-Color =
|Week3-2 = Georgia (2–0) (2)
|Week3-2-Color =
|Week3-3 = Oklahoma (2–0)
|Week3-3-Color = u
|Week3-4 = Oregon (2–0)
|Week3-4-Color = u
|Week3-5 = Iowa (2–0)
|Week3-5-Color = u
|Week3-6 = Clemson (1–1)
|Week3-6-Color =
|Week3-7 = Texas A&M (2–0)
|Week3-7-Color = d
|Week3-8 = Cincinnati (2–0)
|Week3-8-Color = d
|Week3-9 = Ohio State (1–1)
|Week3-9-Color = d
|Week3-10 = Penn State (2–0)
|Week3-10-Color = u
|Week3-11 = Florida (2–0)
|Week3-11-Color = u
|Week3-12 = Notre Dame (2–0)
|Week3-12-Color = d
|Week3-13 = UCLA (2–0)
|Week3-13-Color = u
|Week3-14 = Iowa State (1–1)
|Week3-14-Color = d
|Week3-15 = Virginia Tech (2–0)
|Week3-15-Color = u
|Week3-16 = Coastal Carolina (2–0)
|Week3-16-Color = u
|Week3-17 = Ole Miss (2–0)
|Week3-17-Color = u
|Week3-18 = Wisconsin (1–1)
|Week3-18-Color =
|Week3-19 = Arizona State (2–0)
|Week3-19-Color = u
|Week3-20 = Arkansas (2–0)
|Week3-20-Color = npr
|Week3-21 = North Carolina (1–1)
|Week3-21-Color = u
|Week3-22 = Auburn (2–0)
|Week3-22-Color = u
|Week3-23 = BYU (2–0)
|Week3-23-Color = npr
|Week3-24 = Miami (FL) (1–1)
|Week3-24-Color = d
|Week3-25 = Michigan (2–0)
|Week3-25-Color = npr
|Week3Dropped = {{ubl|USC|Texas|Utah}}
|Week4-1 = Alabama (3–0) (59)
|Week4-1-Color =
|Week4-2 = Georgia (3–0) (3)
|Week4-2-Color =
|Week4-3 = Oregon (3–0)
|Week4-3-Color = u
|Week4-4 = Oklahoma (3–0)
|Week4-4-Color = d
|Week4-5 = Iowa (3–0)
|Week4-5-Color =
|Week4-6 = Penn State (3–0)
|Week4-6-Color = u
|Week4-7 = Texas A&M (3–0)
|Week4-7-Color =
|Week4-8 = Cincinnati (3–0)
|Week4-8-Color =
|Week4-9 = Clemson (2–1)
|Week4-9-Color = d
|Week4-10 = Ohio State (2–1)
|Week4-10-Color = d
|Week4-11 = Florida (2–1)
|Week4-11-Color =
|Week4-12 = Notre Dame (3–0)
|Week4-12-Color =
|Week4-13 = Ole Miss (3–0)
|Week4-13-Color = u
|Week4-14 = Iowa State (2–1)
|Week4-14-Color =
|Week4-15 = BYU (3–0)
|Week4-15-Color = u
|Week4-16 = Arkansas (3–0)
|Week4-16-Color = u
|Week4-17 = Coastal Carolina (3–0)
|Week4-17-Color = d
|Week4-18 = Wisconsin (1–1)
|Week4-18-Color =
|Week4-19 = Michigan (3–0)
|Week4-19-Color = u
|Week4-20 = Michigan State (3–0)
|Week4-20-Color = npr
|Week4-21 = North Carolina (2–1)
|Week4-21-Color =
|Week4-22 = Fresno State (3–1)
|Week4-22-Color = npr
|Week4-23 = Auburn (2–1)
|Week4-23-Color = d
|Week4-24 = UCLA (2–1)
|Week4-24-Color = d
|Week4-25 = Kansas State (3–0)
|Week4-25-Color = npr
|Week4Dropped = {{ubl|Virginia Tech|Arizona State|Miami (FL)}}
|Week5-1 = Alabama (4–0) (58)
|Week5-1-Color =
|Week5-2 = Georgia (4–0) (4)
|Week5-2-Color =
|Week5-3 = Oregon (4–0)
|Week5-3-Color =
|Week5-4 = Penn State (4–0)
|Week5-4-Color = u
|Week5-5 = Iowa (4–0)
|Week5-5-Color =
|Week5-6 = Oklahoma (4–0)
|Week5-6-Color = d
|Week5-7 = Cincinnati (3–0)
|Week5-7-Color = u
|Week5-8 = Arkansas (4–0)
|Week5-8-Color = u
|Week5-9 = Notre Dame (4–0)
|Week5-9-Color = u
|Week5-10 = Florida (3–1)
|Week5-10-Color = u
|Week5-11 = Ohio State (3–1)
|Week5-11-Color = d
|Week5-12 = Ole Miss (3–0)
|Week5-12-Color = u
|Week5-13 = BYU (4–0)
|Week5-13-Color = u
|Week5-14 = Michigan (4–0)
|Week5-14-Color = u
|Week5-15 = Texas A&M (3–1)
|Week5-15-Color = d
|Week5-16 = Coastal Carolina (4–0)
|Week5-16-Color = u
|Week5-17 = Michigan State (4–0)
|Week5-17-Color = u
|Week5-18 = Fresno State (4–1)
|Week5-18-Color = u
|Week5-19 = Oklahoma State (4–0)
|Week5-19-Color = npr
|Week5-20 = UCLA (3–1)
|Week5-20-Color = u
|Week5-21 = Baylor (4–0)
|Week5-21-Color = npr
|Week5-22 = Auburn (3–1)
|Week5-22-Color = u
|Week5-23 = NC State (3–1)
|Week5-23-Color = npr
|Week5-24 = Wake Forest (4–0)
|Week5-24-Color = npr
|Week5-25 = Clemson (2–2)
|Week5-25-Color = d
|Week5Dropped = {{ubl|Iowa State|Wisconsin|North Carolina|Kansas State}}
|Week6-1 = Alabama (5–0) (53)
|Week6-1-Color =
|Week6-2 = Georgia (5–0) (9)
|Week6-2-Color =
|Week6-3 = Iowa (5–0)
|Week6-3-Color = u
|Week6-4 = Penn State (5–0)
|Week6-4-Color =
|Week6-5 = Cincinnati (4–0)
|Week6-5-Color = u
|Week6-6 = Oklahoma (5–0)
|Week6-6-Color =
|Week6-7 = Ohio State (4–1)
|Week6-7-Color = u
|Week6-8 = Oregon (4–1)
|Week6-8-Color = d
|Week6-9 = Michigan (5–0)
|Week6-9-Color = u
|Week6-10 = BYU (5–0)
|Week6-10-Color = u
|Week6-11 = Michigan State (5–0)
|Week6-11-Color = u
|Week6-12 = Oklahoma State (5–0)
|Week6-12-Color = u
|Week6-13 = Arkansas (4–1)
|Week6-13-Color = d
|Week6-14 = Notre Dame (4–1)
|Week6-14-Color = d
|Week6-15 = Coastal Carolina (5–0)
|Week6-15-Color = u
|Week6-16 = Kentucky (5–0)
|Week6-16-Color = npr
|Week6-17 = Ole Miss (3–1)
|Week6-17-Color = d
|Week6-18 = Auburn (4–1)
|Week6-18-Color = u
|Week6-19 = Wake Forest (5–0)
|Week6-19-Color = u
|Week6-20 = Florida (3–2)
|Week6-20-Color = d
|Week6-21 = Texas (4–1)
|Week6-21-Color = npr
|Week6-22 = Arizona State (4–1)
|Week6-22-Color = npr
|Week6-23 = NC State (4–1)
|Week6-23-Color =
|Week6-24 = SMU (5–0)
|Week6-24-Color = npr
|Week6-25 = San Diego State (4–0)
|Week6-25-Color = npr
|Week6Dropped = {{ubl|Texas A&M|Fresno State|UCLA|Baylor|Clemson}}
|Week7-1 = Georgia (6–0) (62)
|Week7-1-Color = u
|Week7-2 = Iowa (6–0)
|Week7-2-Color = u
|Week7-3 = Cincinnati (6–0)
|Week7-3-Color = u
|Week7-4 = Oklahoma (6–0)
|Week7-4-Color = u
|Week7-5 = Alabama (5–1)
|Week7-5-Color = d
|Week7-6 = Ohio State (5–1)
|Week7-6-Color = u
|Week7-7 = Penn State (5–1)
|Week7-7-Color = d
|Week7-8 = Michigan (6–0)
|Week7-8-Color = u
|Week7-9 = Oregon (4–1)
|Week7-9-Color = d
|Week7-10 = Michigan State (6–0)
|Week7-10-Color = u
|Week7-11 = Kentucky (6–0)
|Week7-11-Color = u
|Week7-12 = Oklahoma State (5–0)
|Week7-12-Color =
|Week7-13 = Ole Miss (4–1)
|Week7-13-Color = u
|Week7-14 = Notre Dame (5–1)
|Week7-14-Color =
|Week7-15 = Coastal Carolina (6–0)
|Week7-15-Color =
|Week7-16 = Wake Forest (6–0)
|Week7-16-Color = u
|Week7-17 = Arkansas (4–2)
|Week7-17-Color = d
|Week7-18 = Arizona State (5–1)
|Week7-18-Color = u
|Week7-19 = BYU (5–1)
|Week7-19-Color = d
|Week7-20 = Florida (4–2)
|Week7-20-Color =
|Week7-21 = Texas A&M (4–2)
|Week7-21-Color = npr
|Week7-22 = NC State (4–1)
|Week7-22-Color = u
|Week7-23 = SMU (6–0)
|Week7-23-Color = u
|Week7-24 = San Diego State (5–0)
|Week7-24-Color = u
|Week7-25 = Texas (4–2)
|Week7-25-Color = d
|Week7Dropped = Auburn
|Week8-1 = Georgia (7–0) (63)
|Week8-1-Color =
|Week8-2 = Cincinnati (6–0)
|Week8-2-Color = u
|Week8-3 = Oklahoma (7–0)
|Week8-3-Color = u
|Week8-4 = Alabama (6–1)
|Week8-4-Color = u
|Week8-5 = Ohio State (5–1)
|Week8-5-Color = u
|Week8-6 = Michigan (6–0)
|Week8-6-Color = u
|Week8-7 = Penn State (5–1)
|Week8-7-Color =
|Week8-8 = Oklahoma State (6–0)
|Week8-8-Color = u
|Week8-9 = Michigan State (7–0)
|Week8-9-Color = u
|Week8-10 = Oregon (5–1)
|Week8-10-Color = d
|Week8-11 = Iowa (6–1)
|Week8-11-Color = d
|Week8-12 = Ole Miss (5–1)
|Week8-12-Color = u
|Week8-13 = Notre Dame (5–1)
|Week8-13-Color = u
|Week8-14 = Coastal Carolina (6–0)
|Week8-14-Color = u
|Week8-15 = Kentucky (6–1)
|Week8-15-Color = d
|Week8-16 = Wake Forest (6–0)
|Week8-16-Color =
|Week8-17 = Texas A&M (5–2)
|Week8-17-Color = u
|Week8-18 = NC State (5–1)
|Week8-18-Color = u
|Week8-19 = Auburn (5–2)
|Week8-19-Color = npr
|Week8-20 = Baylor (6–1)
|Week8-20-Color = npr
|Week8-21 = SMU (6–0)
|Week8-21-Color = u
|Week8-22 = San Diego State (6–0)
|Week8-22-Color = u
|Week8-23 = Pittsburgh (5–1)
|Week8-23-Color = npr
|Week8-24 = UTSA (7–0)
|Week8-24-Color = npr
|Week8-25 = Purdue (4–2)
|Week8-25-Color = npr
|Week8Dropped = {{ubl|Arkansas|Arizona State|BYU|Florida|Texas}}
|Week9-1 = Georgia (7–0) (63)
|Week9-1-Color =
|Week9-2 = Cincinnati (7–0)
|Week9-2-Color =
|Week9-3 = Alabama (7–1)
|Week9-3-Color = u
|Week9-4 = Oklahoma (8–0)
|Week9-4-Color = d
|Week9-5 = Ohio State (6–1)
|Week9-5-Color =
|Week9-6 = Michigan (7–0)
|Week9-6-Color =
|Week9-7 = Oregon (6–1)
|Week9-7-Color = u
|Week9-8 = Michigan State (7–0)
|Week9-8-Color = u
|Week9-9 = Iowa (6–1)
|Week9-9-Color = u
|Week9-10 = Ole Miss (6–1)
|Week9-10-Color= u
|Week9-11 = Notre Dame (6–1)
|Week9-11-Color= u
|Week9-12 = Kentucky (6–1)
|Week9-12-Color= u
|Week9-13 = Wake Forest (7–0)
|Week9-13-Color= u
|Week9-14 = Texas A&M (6–2)
|Week9-14-Color= u
|Week9-15 = Oklahoma State (6–1)
|Week9-15-Color= d
|Week9-16 = Baylor (6–1)
|Week9-16-Color= u
|Week9-17 = Pittsburgh (6–1)
|Week9-17-Color= u
|Week9-18 = Auburn (5–2)
|Week9-18-Color= u
|Week9-19 = SMU (7–0)
|Week9-19-Color= u
|Week9-20 = Penn State (5–2)
|Week9-20-Color= d
|Week9-21 = San Diego State (7–0)
|Week9-21-Color= u
|Week9-22 = Iowa State (5–2)
|Week9-22-Color= npr
|Week9-23 = UTSA (8–0)
|Week9-23-Color= u
|Week9-24 = Coastal Carolina (6–1)
|Week9-24-Color= d
|Week9-25 = BYU (6–2)
|Week9-25-Color= npr
|Week9Dropped = {{ubl|NC State|Purdue}}
|Week10-1 = Georgia (8–0) (63)
|Week10-1-Color =
|Week10-2 = Cincinnati (8–0)
|Week10-2-Color =
|Week10-3 = Alabama (7–1)
|Week10-3-Color =
|Week10-4 = Oklahoma (9–0)
|Week10-4-Color =
|Week10-5 = Michigan State (8–0)
|Week10-5-Color = u
|Week10-6 = Ohio State (7–1)
|Week10-6-Color = d
|Week10-7 = Oregon (7–1)
|Week10-7-Color =
|Week10-8 = Notre Dame (7–1)
|Week10-8-Color = u
|Week10-9 = Michigan (7–1)
|Week10-9-Color = d
|Week10-10 = Wake Forest (8–0)
|Week10-10-Color= u
|Week10-11 = Oklahoma State (7–1)
|Week10-11-Color= u
|Week10-12 = Auburn (6–2)
|Week10-12-Color= u
|Week10-13 = Texas A&M (6–2)
|Week10-13-Color= u
|Week10-14 = Baylor (7–1)
|Week10-14-Color= u
|Week10-15 = Ole Miss (6–2)
|Week10-15-Color= d
|Week10-16 = UTSA (8–0)
|Week10-16-Color= u
|Week10-17 = BYU (7–2)
|Week10-17-Color= u
|Week10-18 = Kentucky (6–2)
|Week10-18-Color= d
|Week10-19 = Iowa (6–2)
|Week10-19-Color= d
|Week10-20 = Houston (7–1)
|Week10-20-Color= npr
|Week10-21 = Coastal Carolina (7–1)
|Week10-21-Color= u
|Week10-22 = Penn State (5–3)
|Week10-22-Color= d
|Week10-23 = SMU (7–1)
|Week10-23-Color= d
|Week10-24 = Louisiana (7–1)
|Week10-24-Color= npr
|Week10-25 = Fresno State (7–2)
|Week10-25-Color= npr
|Week10Dropped = {{ubl|Pittsburgh|San Diego State|Iowa State}}
|Week11-1 = Georgia (9–0) (63)
|Week11-1-Color =
|Week11-2 = Cincinnati (9–0)
|Week11-2-Color =
|Week11-3 = Alabama (8–1)
|Week11-3-Color =
|Week11-4 = Oklahoma (9–0)
|Week11-4-Color =
|Week11-5 = Oregon (8–1)
|Week11-5-Color = u
|Week11-6 = Ohio State (8–1)
|Week11-6-Color =
|Week11-7 = Notre Dame (8–1)
|Week11-7-Color = u
|Week11-8 = Michigan State (8–1)
|Week11-8-Color = d
|Week11-9 = Michigan (8–1)
|Week11-9-Color =
|Week11-10 = Oklahoma State (8–1)
|Week11-10-Color= u
|Week11-11 = Texas A&M (7–2)
|Week11-11-Color= u
|Week11-12 = Ole Miss (7–2)
|Week11-12-Color= u
|Week11-13 = Wake Forest (8–1)
|Week11-13-Color= d
|Week11-14 = BYU (8–2)
|Week11-14-Color= u
|Week11-15 = UTSA (9–0)
|Week11-15-Color= u
|Week11-16 = Auburn (6–3)
|Week11-16-Color= d
|Week11-17 = Houston (8–1)
|Week11-17-Color= u
|Week11-18 = Baylor (7–2)
|Week11-18-Color= d
|Week11-19 = Iowa (7–2)
|Week11-19-Color=
|Week11-20 = Wisconsin (6–3)
|Week11-20-Color= npr
|Week11-21 = NC State (7–2)
|Week11-21-Color= npr
|Week11-22 = Coastal Carolina (8–1)
|Week11-22-Color= d
|Week11-23 = Penn State (6–3)
|Week11-23-Color= d
|Week11-24 = Louisiana (8–1)
|Week11-24-Color=
|Week11-25 = Pittsburgh (7–2)
|Week11-25-Color= npr
|Week11Dropped = {{ubl|Kentucky|SMU|Fresno State}}
|Week12-1 = Georgia (10–0) (62)
|Week12-1-Color =
|Week12-2 = Alabama (9–1)
|Week12-2-Color = u
|Week12-3 = Cincinnati (10–0)
|Week12-3-Color = d
|Week12-4 = Oregon (9–1)
|Week12-4-Color = u
|Week12-5 = Ohio State (9–1)
|Week12-5-Color = u
|Week12-6 = Notre Dame (9–1)
|Week12-6-Color = u
|Week12-7 = Michigan State (9–1)
|Week12-7-Color = u
|Week12-8 = Michigan (9–1)
|Week12-8-Color = u
|Week12-9 = Oklahoma State (9–1)
|Week12-9-Color = u
|Week12-10 = Ole Miss (8–2)
|Week12-10-Color= u
|Week12-11 = Baylor (8–2)
|Week12-11-Color= u
|Week12-12 = Oklahoma (9–1)
|Week12-12-Color= d
|Week12-13 = Wake Forest (9–1)
|Week12-13-Color=
|Week12-14 = BYU (8–2)
|Week12-14-Color=
|Week12-15 = UTSA (10–0)
|Week12-15-Color=
|Week12-16 = Texas A&M (7–3)
|Week12-16-Color= d
|Week12-17 = Houston (9–1)
|Week12-17-Color=
|Week12-18 = Iowa (8–2)
|Week12-18-Color= u
|Week12-19 = Wisconsin (7–3)
|Week12-19-Color= u
|Week12-20 = Pittsburgh (8–2)
|Week12-20-Color= u
|Week12-21 = Arkansas (7–3)
|Week12-21-Color= npr
|Week12-22 = Louisiana (9–1)
|Week12-22-Color= u
|Week12-23 = San Diego State (9–1)
|Week12-23-Color= npr
|Week12-24 = Utah (7–3)
|Week12-24-Color= npr
|Week12-25 = NC State (7–3)
|Week12-25-Color= d
|Week12Dropped = {{ubl|Auburn|Coastal Carolina|Penn State}}
|Week13-1 = Georgia (11–0) (62)
|Week13-1-Color =
|Week13-2 = Ohio State (10–1)
|Week13-2-Color = u
|Week13-3 = Alabama (10–1)
|Week13-3-Color = d
|Week13-4 = Cincinnati (11–0)
|Week13-4-Color = d
|Week13-5 = Notre Dame (10–1)
|Week13-5-Color = u
|Week13-6 = Michigan (10–1)
|Week13-6-Color = u
|Week13-7 = Oklahoma State (10–1)
|Week13-7-Color = u
|Week13-8 = Ole Miss (9–2)
|Week13-8-Color = u
|Week13-9 = Baylor (9–2)
|Week13-9-Color = u
|Week13-10 = Oklahoma (10–1)
|Week13-10-Color= u
|Week13-11 = Oregon (9–2)
|Week13-11-Color= d
|Week13-12 = Michigan State (9–2)
|Week13-12-Color= d
|Week13-13 = BYU (9–2)
|Week13-13-Color= u
|Week13-14 = Texas A&M (8–3)
|Week13-14-Color= u
|Week13-15 = UTSA (11–0)
|Week13-15-Color=
|Week13-16 = Utah (8–3)
|Week13-16-Color= u
|Week13-17 = Iowa (9–2)
|Week13-17-Color= u
|Week13-18 = Wisconsin (8–3)
|Week13-18-Color= u
|Week13-19 = Houston (10–1)
|Week13-19-Color= d
|Week13-20 = Pittsburgh (9–2)
|Week13-20-Color=
|Week13-21 = Wake Forest (9–2)
|Week13-21-Color= d
|Week13-22 = San Diego State (10–1)
|Week13-22-Color= u
|Week13-23 = Louisiana (10–1)
|Week13-23-Color= d
|Week13-24 = NC State (8–3)
|Week13-24-Color= u
|Week13-25 = Arkansas (7–4)
|Week13-25-Color= d
|Week13Dropped =
|Week14-1 = Georgia (12–0) (62)
|Week14-1-Color =
|Week14-2 = Michigan (11–1)
|Week14-2-Color = u
|Week14-3 = Cincinnati (12–0)
|Week14-3-Color = u
|Week14-4 = Alabama (11–1)
|Week14-4-Color = d
|Week14-5 = Oklahoma State (11–1)
|Week14-5-Color = u
|Week14-6 = Notre Dame (11–1)
|Week14-6-Color = d
|Week14-7 = Ohio State (10–2)
|Week14-7-Color = d
|Week14-8 = Ole Miss (10–2)
|Week14-8-Color =
|Week14-9 = Baylor (10–2)
|Week14-9-Color =
|Week14-10 = Oregon (10–2)
|Week14-10-Color= u
|Week14-11 = Michigan State (10–2)
|Week14-11-Color= u
|Week14-12 = BYU (10–2)
|Week14-12-Color= u
|Week14-13 = Oklahoma (10–2)
|Week14-13-Color= d
|Week14-14 = Utah (9–3)
|Week14-14-Color= u
|Week14-15 = Iowa (10–2)
|Week14-15-Color= u
|Week14-16 = Houston (11–1)
|Week14-16-Color= u
|Week14-17 = Pittsburgh (10–2)
|Week14-17-Color= u
|Week14-18 = Wake Forest (10–2)
|Week14-18-Color= u
|Week14-19 = San Diego State (11–1)
|Week14-19-Color= u
|Week14-20 = Louisiana (11–1)
|Week14-20-Color= u
|Week14-21 = NC State (9–3)
|Week14-21-Color= u
|Week14-22 = Clemson (9–3)
|Week14-22-Color= npr
|Week14-23 = Arkansas (8–4)
|Week14-23-Color= u
|Week14-24 = Texas A&M (8–4)
|Week14-24-Color= d
|Week14-25 = Kentucky (9–3)
|Week14-25-Color= npr
|Week14Dropped = {{ubl|UTSA|Wisconsin}}
|Week15-1 = Alabama (12–1) (50)
|Week15-1-Color = u
|Week15-2 = Michigan (12–1) (9)
|Week15-2-Color =
|Week15-3 = Georgia (12–1)
|Week15-3-Color = d
|Week15-4 = Cincinnati (13–0) (3)
|Week15-4-Color = d
|Week15-5 = Notre Dame (11–1)
|Week15-5-Color = u
|Week15-6 = Baylor (11–2)
|Week15-6-Color = u
|Week15-7 = Ohio State (10–2)
|Week15-7-Color =
|Week15-8 = Ole Miss (10–2)
|Week15-8-Color =
|Week15-9 = Oklahoma State (11–2)
|Week15-9-Color = d
|Week15-10 = Utah (10–3)
|Week15-10-Color= u
|Week15-11 = Michigan State (10–2)
|Week15-11-Color=
|Week15-12 = BYU (10–2)
|Week15-12-Color=
|Week15-13 = Pittsburgh (11–2)
|Week15-13-Color= u
|Week15-14 = Oklahoma (10–2)
|Week15-14-Color= d
|Week15-15 = Oregon (10–3)
|Week15-15-Color= d
|Week15-16 = Louisiana (12–1)
|Week15-16-Color= u
|Week15-17 = Iowa (10–3)
|Week15-17-Color= d
|Week15-18 = NC State (9–3)
|Week15-18-Color= u
|Week15-19 = Clemson (9–3)
|Week15-19-Color= u
|Week15-20 = Wake Forest (10–3)
|Week15-20-Color= d
|Week15-21 = Houston (11–2)
|Week15-21-Color= d
|Week15-22 = Arkansas (8–4)
|Week15-22-Color= u
|Week15-23 = Texas A&M (8–4)
|Week15-23-Color= u
|Week15-24 = UTSA (12–1)
|Week15-24-Color= npr
|Week15-25 = Kentucky (9–3)
|Week15-25-Color=
|Week15Dropped = {{ubl|San Diego State}}
|Week16-1 = Georgia (14–1) (61)
|Week16-1-Color = u
|Week16-2 = Alabama (13–2)
|Week16-2-Color = d
|Week16-3 = Michigan (12–2)
|Week16-3-Color = d
|Week16-4 = Cincinnati (13–1)
|Week16-4-Color =
|Week16-5 = Baylor (12–2)
|Week16-5-Color = u
|Week16-6 = Ohio State (11–2)
|Week16-6-Color = u
|Week16-7 = Oklahoma State (12–2)
|Week16-7-Color = u
|Week16-8 = Notre Dame (11–2)
|Week16-8-Color = d
|Week16-9 = Michigan State (11–2)
|Week16-9-Color = u
|Week16-10 = Oklahoma (11–2)
|Week16-10-Color= u
|Week16-11 = Ole Miss (10–3)
|Week16-11-Color= d
|Week16-12 = Utah (10–4)
|Week16-12-Color= d
|Week16-13 = Pittsburgh (11–3)
|Week16-13-Color=
|Week16-14 = Clemson (10–3)
|Week16-14-Color= u
|Week16-15 = Wake Forest (11–3)
|Week16-15-Color= u
|Week16-16 = Louisiana (13–1)
|Week16-16-Color=
|Week16-17 = Houston (12–2)
|Week16-17-Color= u
|Week16-18 = Kentucky (10–3)
|Week16-18-Color= u
|Week16-19 = BYU (10–3)
|Week16-19-Color= d
|Week16-20 = NC State (9–3)
|Week16-20-Color= d
|Week16-21 = Arkansas (9–4)
|Week16-21-Color= u
|Week16-22 = Oregon (10–4)
|Week16-22-Color= d
|Week16-23 = Iowa (10–4)
|Week16-23-Color= d
|Week16-24 = Utah State (11–3)
|Week16-24-Color= npr
|Week16-25 = San Diego State (12–2)
|Week16-25-Color= npr
|Week16Dropped = {{ubl|Texas A&M|UTSA}}
}}
=Ranking highlights=
- Iowa State received its highest ranking (No. 7) in program history.
- Coastal Carolina and Louisiana, respectively No. 22 and No. 23, were the first Sun Belt Conference teams ever ranked in the preseason.
;Week 5
- Clemson's long streak of poll rankings ends.
;Week 6
- Cincinnati received its highest ranking (No. 3) in program history.
;Week 7
- UTSA was ranked for the first time in program history at No. 24.
- Cincinnati received its highest ranking (No. 2) in program history.
;Week 8
- UTSA received its highest ranking (No. 23) in program history.
;Week 9
- Wake Forest received its highest ranking (No. 10) in program history.
- UTSA received its highest ranking (No. 16) in program history.
;Week 10
- UTSA received its highest ranking (No. 15) in program history.
;Final Poll
- Cincinnati received its highest final ranking (No. 4). Its previous high was No. 8 in 2009 and 2020.
- Baylor received its highest final ranking (No. 5). Its previous high was No. 7 in 2014.
- Wake Forest received its highest final ranking (No. 15). Its previous high was No. 18 in 2006.
Coaches Poll
{{ColPollTable
|Week1 = 0
|Week2 = 1
|Week3 = 2
|Week4 = 3
|Week5 = 4
|Week6 = 5
|Week7 = 6
|Week8 = 7
|Week9 = 8
|Week10 = 9
|Week11 = 10
|Week12 = 11
|Week13 = 12
|Week14 = 13
|Week15 = 14
|Week16 = 15 (Final)
|Week1Date = Aug 10{{cite news |url=https://www.usatoday.com/sports/ncaaf/polls/coaches-poll/|title=Amway Coaches Poll: August 10, 2021 |newspaper=USA Today |date=August 10, 2021}}
|Week1-1 = Alabama (63)
|Week1-2 = Clemson
|Week1-3 = Oklahoma (2)
|Week1-4 = Ohio State
|Week1-5 = Georgia
|Week1-6 = Texas A&M
|Week1-7 = Notre Dame
|Week1-8 = Iowa State
|Week1-9 = North Carolina
|Week1-10 = Cincinnati
|Week1-11 = Florida
|Week1-12 = Oregon
|Week1-13 = LSU
|Week1-14 = USC
|Week1-15 = Wisconsin
|Week1-16 = Miami (FL)
|Week1-17 = Indiana
|Week1-18 = Iowa
|Week1-19 = Texas
|Week1-20 = Penn State
|Week1-21 = Washington
|Week1-22 = Oklahoma State
|Week1-23 = Louisiana
|Week1-24 = Coastal Carolina
|Week1-25 = Ole Miss
|Week2-1 = Alabama (1–0) (64)
|Week2-1-Color =
|Week2-2 = Georgia (1–0) (1)
|Week2-2-Color = u
|Week2-3 = Ohio State (1–0)
|Week2-3-Color = u
|Week2-4 = Oklahoma (1–0)
|Week2-4-Color = d
|Week2-5 = Texas A&M (1–0)
|Week2-5-Color = u
|Week2-6 = Clemson (0–1)
|Week2-6-Color = d
|Week2-7 = Notre Dame (1–0)
|Week2-7-Color =
|Week2-8 = Cincinnati (1–0)
|Week2-8-Color = u
|Week2-9 = Florida (1–0)
|Week2-9-Color = u
|Week2-10 = Iowa State (1–0)
|Week2-10-Color = d
|Week2-11 = Oregon (1–0)
|Week2-11-Color = u
|Week2-12 = Iowa (1–0)
|Week2-12-Color = u
|Week2-13 = Penn State (1–0)
|Week2-13-Color = u
|Week2-14 = USC (1–0)
|Week2-14-Color =
|Week2-15 = Texas (1–0)
|Week2-15-Color = u
|Week2-16 = UCLA (2–0)
|Week2-16-Color = npr
|Week2-17 = Wisconsin (0–1)
|Week2-17-Color = d
|Week2-18 = Utah (1–0)
|Week2-18-Color = npr
|Week2-19 = Coastal Carolina (1–0)
|Week2-19-Color = u
|Week2-20 = Ole Miss (1–0)
|Week2-20-Color = u
|Week2-21 = Virginia Tech (1–0)
|Week2-21-Color = npr
|Week2-22 = North Carolina (0–1)
|Week2-22-Color = d
|Week2-23 = Oklahoma State (1–0)
|Week2-23-Color = d
|Week2-24 = Miami (FL) (0–1)
|Week2-24-Color = d
|Week2-25 = Arizona State (1–0)
|Week2-25-Color = npr
|Week2Dropped = {{ubl|LSU|Indiana|Washington|Louisiana}}
|Week3-1 = Alabama (2–0) (64)
|Week3-1-Color =
|Week3-2 = Georgia (2–0) (1)
|Week3-2-Color =
|Week3-3 = Oklahoma (2–0)
|Week3-3-Color = u
|Week3-4 = Oregon (2–0)
|Week3-4-Color = u
|Week3-5 = Texas A&M (2–0)
|Week3-5-Color =
|Week3-6 = Clemson (1–1)
|Week3-6-Color =
|Week3-7 = Iowa (2–0)
|Week3-7-Color = u
|Week3-8 = Cincinnati (2–0)
|Week3-8-Color =
|Week3-9 = Florida (2–0)
|Week3-9-Color =
|Week3-10 = Notre Dame (2–0)
|Week3-10-Color = d
|Week3-11 = Ohio State (1–1)
|Week3-11-Color = d
|Week3-12 = Penn State (2–0)
|Week3-12-Color = u
|Week3-13 = UCLA (2–0)
|Week3-13-Color = u
|Week3-14 = Iowa State (1–1)
|Week3-14-Color = d
|Week3-15 = Virginia Tech (2–0)
|Week3-15-Color = u
|Week3-16 = Ole Miss (2–0)
|Week3-16-Color = u
|Week3-17 = Wisconsin (1–1)
|Week3-17-Color =
|Week3-18 = Coastal Carolina (2–0)
|Week3-18-Color = u
|Week3-19 = North Carolina (1–1)
|Week3-19-Color = u
|Week3-20 = Auburn (2–0)
|Week3-20-Color = npr
|Week3-21 = Arizona State (2–0)
|Week3-21-Color = u
|Week3-22 = Oklahoma State (2–0)
|Week3-22-Color = u
|Week3-23 = BYU (2–0)
|Week3-23-Color = npr
|Week3-24 = Arkansas (2–0)
|Week3-24-Color = npr
|Week3-25 = Michigan (2–0)
|Week3-25-Color = npr
|Week3Dropped = {{ubl|USC|Texas|Utah|Miami (FL)}}
|Week4-1 = Alabama (3–0) (64)
|Week4-1-Color =
|Week4-2 = Georgia (3–0) (1)
|Week4-2-Color =
|Week4-3 = Oklahoma (3–0)
|Week4-3-Color =
|Week4-4 = Oregon (3–0)
|Week4-4-Color =
|Week4-5 = Texas A&M (3–0)
|Week4-5-Color =
|Week4-6 = Iowa (3–0)
|Week4-6-Color = u
|Week4-7 = Clemson (2–1)
|Week4-7-Color = d
|Week4-8 = Penn State (3–0)
|Week4-8-Color = u
|Week4-9 = Cincinnati (3–0)
|Week4-9-Color = d
|Week4-10 = Notre Dame (3–0)
|Week4-10-Color =
|Week4-11 = Florida (2–1)
|Week4-11-Color = d
|Week4-12 = Ohio State (2–1)
|Week4-12-Color = d
|Week4-13 = Ole Miss (3–0)
|Week4-13-Color = u
|Week4-14 = Iowa State (2–1)
|Week4-14-Color =
|Week4-15 = Wisconsin (1–1)
|Week4-15-Color = u
|Week4-16 = BYU (3–0)
|Week4-16-Color = u
|Week4-17 = Coastal Carolina (3–0)
|Week4-17-Color = u
|Week4-18 = Arkansas (3–0)
|Week4-18-Color = u
|Week4-19 = Michigan (3–0)
|Week4-19-Color = u
|Week4-20 = North Carolina (2–1)
|Week4-20-Color = d
|Week4-21 = Michigan State (3–0)
|Week4-21-Color = npr
|Week4-22 = Oklahoma State (3–0)
|Week4-22-Color =
|Week4-23 = Auburn (2–1)
|Week4-23-Color = d
|Week4-24 = UCLA (2–1)
|Week4-24-Color = d
|Week4-25 = Fresno State (3–1)
|Week4-25-Color = npr
|Week4Dropped = {{ubl|Virginia Tech|Arizona State}}
|Week5-1 = Alabama (4–0) (64)
|Week5-1-Color =
|Week5-2 = Georgia (4–0) (1)
|Week5-2-Color =
|Week5-3 = Oregon (4–0)
|Week5-3-Color = u
|Week5-4 = Oklahoma (4–0)
|Week5-4-Color = d
|Week5-5 = Iowa (4–0)
|Week5-5-Color = u
|Week5-6 = Penn State (4–0)
|Week5-6-Color = u
|Week5-7 = Notre Dame (4–0)
|Week5-7-Color = u
|Week5-8 = Cincinnati (3–0)
|Week5-8-Color = u
|Week5-9 = Florida (3–1)
|Week5-9-Color = u
|Week5-10 = Ohio State (3–1)
|Week5-10-Color = u
|Week5-11 = Arkansas (4–0)
|Week5-11-Color = u
|Week5-12 = Ole Miss (3–0)
|Week5-12-Color = u
|Week5-13 = Texas A&M (3–1)
|Week5-13-Color = d
|Week5-14 = Michigan (4–0)
|Week5-14-Color = u
|Week5-15 = BYU (4–0)
|Week5-15-Color = u
|Week5-16 = Michigan State (4–0) т
|Week5-16-Color = tu
|Week5-17 = Coastal Carolina (4–0) т
|Week5-17-Color = u
|Week5-18 = Oklahoma State (4–0)
|Week5-18-Color = u
|Week5-19 = Clemson (2–2)
|Week5-19-Color = d
|Week5-20 = UCLA (3–1)
|Week5-20-Color = u
|Week5-21 = Fresno State (4–1)
|Week5-21-Color = u
|Week5-22 = Auburn (3–1)
|Week5-22-Color = u
|Week5-23 = Kentucky (4–0)
|Week5-23-Color = npr
|Week5-24 = Baylor (4–0)
|Week5-24-Color = npr
|Week5-25 = Wake Forest (4–0)
|Week5-25-Color = npr
|Week5Dropped = {{ubl|Iowa State|Wisconsin|North Carolina}}
|Week6-1 = Alabama (5–0) (63)
|Week6-1-Color =
|Week6-2 = Georgia (5–0) (2)
|Week6-2-Color =
|Week6-3 = Iowa (5–0)
|Week6-3-Color = u
|Week6-4 = Penn State (5–0)
|Week6-4-Color = u
|Week6-5 = Oklahoma (5–0)
|Week6-5-Color = d
|Week6-6 = Cincinnati (4–0)
|Week6-6-Color = u
|Week6-7 = Ohio State (4–1)
|Week6-7-Color = u
|Week6-8 = Michigan (5–0)
|Week6-8-Color = u
|Week6-9 = Oregon (4–1)
|Week6-9-Color = d
|Week6-10 = BYU (5–0)
|Week6-10-Color = u
|Week6-11 = Michigan State (5–0)
|Week6-11-Color = u
|Week6-12 = Oklahoma State (5–0)
|Week6-12-Color = u
|Week6-13 = Notre Dame (4–1)
|Week6-13-Color = d
|Week6-14 = Kentucky (5–0)
|Week6-14-Color = u
|Week6-15 = Coastal Carolina (5–0)
|Week6-15-Color = u
|Week6-16 = Arkansas (4–1)
|Week6-16-Color = d
|Week6-17 = Ole Miss (3–1)
|Week6-17-Color = d
|Week6-18 = Florida (3–2)
|Week6-18-Color = d
|Week6-19 = Auburn (4–1)
|Week6-19-Color = u
|Week6-20 = Wake Forest (5–0)
|Week6-20-Color = u
|Week6-21 = Clemson (3–2)
|Week6-21-Color = d
|Week6-22 = NC State (4–1)
|Week6-22-Color = npr
|Week6-23 = Texas (4–1)
|Week6-23-Color = npr
|Week6-24 = SMU (5–0)
|Week6-24-Color = npr
|Week6-25 = Arizona State (4–1)
|Week6-25-Color = npr
|Week6Dropped = {{ubl|Texas A&M|UCLA|Fresno State|Baylor}}
|Week7-1 = Georgia (6–0) (64)
|Week7-1-Color = u
|Week7-2 = Iowa (6–0) (1)
|Week7-2-Color = u
|Week7-3 = Oklahoma (6–0)
|Week7-3-Color = u
|Week7-4 = Cincinnati (5–0)
|Week7-4-Color = u
|Week7-5 = Alabama (5–1)
|Week7-5-Color = d
|Week7-6 = Ohio State (5–1)
|Week7-6-Color = u
|Week7-7 = Michigan (6–0)
|Week7-7-Color = u
|Week7-8 = Penn State (5–1)
|Week7-8-Color = d
|Week7-9 = Michigan State (6–0)
|Week7-9-Color = u
|Week7-10 = Oregon (4–1)
|Week7-10-Color = d
|Week7-11 = Kentucky (6–0)
|Week7-11-Color = u
|Week7-12 = Oklahoma State (5–0)
|Week7-12-Color =
|Week7-13 = Notre Dame (5–1)
|Week7-13-Color =
|Week7-14 = Ole Miss (4–1)
|Week7-14-Color = u
|Week7-15 = Coastal Carolina (6–0)
|Week7-15-Color =
|Week7-16 = Wake Forest (6–0)
|Week7-16-Color = u
|Week7-17 = Florida (4–2)
|Week7-17-Color = u
|Week7-18 = Texas A&M (4–2)
|Week7-18-Color = npr
|Week7-19 = Arkansas (4–2)
|Week7-19-Color = d
|Week7-20 = BYU (5–1)
|Week7-20-Color = d
|Week7-21 = NC State (4–1)
|Week7-21-Color = u
|Week7-22 = Arizona State (5–1)
|Week7-22-Color = u
|Week7-23 = SMU (6–0)
|Week7-23-Color = u
|Week7-24 = San Diego State (5–0)
|Week7-24-Color = npr
|Week7-25 = Clemson (3–2)
|Week7-25-Color = d
|Week7Dropped = {{ubl|Auburn|Texas}}
|Week8-1 = Georgia (7–0) (65)
|Week8-1-Color =
|Week8-2 = Oklahoma (7–0)
|Week8-2-Color = u
|Week8-3 = Cincinnati (7–0)
|Week8-3-Color = u
|Week8-4 = Alabama (6–1)
|Week8-4-Color = u
|Week8-5 = Ohio State (5–1)
|Week8-5-Color = u
|Week8-6 = Michigan (6–0)
|Week8-6-Color = u
|Week8-7 = Michigan State (7–0)
|Week8-7-Color = u
|Week8-8 = Penn State (5–1)
|Week8-8-Color =
|Week8-9 = Oklahoma State (6–0)
|Week8-9-Color = u
|Week8-10 = Oregon (5–1)
|Week8-10-Color =
|Week8-11 = Iowa (6–1)
|Week8-11-Color = d
|Week8-12 = Ole Miss (5–1)
|Week8-12-Color = u
|Week8-13 = Notre Dame (5–1)
|Week8-13-Color =
|Week8-14 = Kentucky (6–1)
|Week8-14-Color = d
|Week8-15 = Wake Forest (6–0)
|Week8-15-Color = u
|Week8-16 = Coastal Carolina (6–0)
|Week8-16-Color = d
|Week8-17 = Texas A&M (5–2)
|Week8-17-Color = u
|Week8-18 = NC State (5–1)
|Week8-18-Color = u
|Week8-19 = SMU (6–0)
|Week8-19-Color = u
|Week8-20 = Baylor (6–1)
|Week8-20-Color = npr
|Week8-21 = San Diego State (6–0)
|Week8-21-Color = u
|Week8-22 = Auburn (5–2)
|Week8-22-Color = npr
|Week8-23 = Pittsburgh (5–1)
|Week8-23-Color = npr
|Week8-24 = Clemson (4–2)
|Week8-24-Color = u
|Week8-25 = UTSA (7–0)
|Week8-25-Color = npr
|Week8Dropped = {{ubl|Florida|Arkansas|BYU|Arizona State}}
|Week9-1 = Georgia (7–0) (64)
|Week9-1-Color =
|Week9-2 = Cincinnati (7–0)
|Week9-2-Color = u
|Week9-3 = Alabama (7–1)
|Week9-3-Color = u
|Week9-4 = Oklahoma (8–0)
|Week9-4-Color = d
|Week9-5 = Ohio State (6–1)
|Week9-5-Color =
|Week9-6 = Michigan (7–0)
|Week9-6-Color =
|Week9-7 = Michigan State (7–0)
|Week9-7-Color =
|Week9-8 = Oregon (6–1)
|Week9-8-Color = u
|Week9-9 = Ole Miss (6–1)
|Week9-9-Color = u
|Week9-10 = Iowa (6–1)
|Week9-10-Color = u
|Week9-11 = Notre Dame (6–1)
|Week9-11-Color = u
|Week9-12 = Kentucky (6–1)
|Week9-12-Color = u
|Week9-13 = Wake Forest (7–0)
|Week9-13-Color = u
|Week9-14 = Texas A&M (6–2)
|Week9-14-Color = u
|Week9-15 = Oklahoma State (6–1)
|Week9-15-Color = d
|Week9-16 = SMU (7–0)
|Week9-16-Color = u
|Week9-17 = Penn State (5–2)
|Week9-17-Color = d
|Week9-18 = Baylor (6–1)
|Week9-18-Color = u
|Week9-19 = Pittsburgh (6–1)
|Week9-19-Color = u
|Week9-20 = San Diego State (7–0)
|Week9-20-Color = u
|Week9-21 = Auburn (5–2)
|Week9-21-Color = u
|Week9-22 = UTSA (8–0)
|Week9-22-Color = u
|Week9-23 = Iowa State (5–2)
|Week9-23-Color = npr
|Week9-24 = Coastal Carolina (6–1)
|Week9-24-Color = d
|Week9-25 = NC State (5–2)
|Week9-25-Color = d
|Week9Dropped = {{ubl|Clemson}}
|Week10-1 = Georgia (8–0) (64)
|Week10-1-Color =
|Week10-2 = Cincinnati (8–0)
|Week10-2-Color =
|Week10-3 = Alabama (7–1)
|Week10-3-Color =
|Week10-4 = Oklahoma (9–0)
|Week10-4-Color =
|Week10-5 = Ohio State (7–1)
|Week10-5-Color =
|Week10-6 = Michigan State (8–0)
|Week10-6-Color = u
|Week10-7 = Oregon (7–1)
|Week10-7-Color = u
|Week10-8 = Notre Dame (7–1)
|Week10-8-Color = u
|Week10-9 = Wake Forest (8–0)
|Week10-9-Color = u
|Week10-10 = Michigan (7–1)
|Week10-10-Color= d
|Week10-11 = Oklahoma State (7–1)
|Week10-11-Color= u
|Week10-12 = Texas A&M (6–2)
|Week10-12-Color= u
|Week10-13 = Baylor (7–1)
|Week10-13-Color= u
|Week10-14 = Auburn (6–2)
|Week10-14-Color= u
|Week10-15 = Ole Miss (6–2)
|Week10-15-Color= d
|Week10-16 = Iowa (6–2)
|Week10-16-Color= d
|Week10-17 = Kentucky (6–2)
|Week10-17-Color= d
|Week10-18 = UTSA (8–0)
|Week10-18-Color= u
|Week10-19 = Houston (7–1)
|Week10-19-Color= npr
|Week10-20 = BYU (7–2)
|Week10-20-Color= npr
|Week10-21 = Coastal Carolina (7–1)
|Week10-21-Color= u
|Week10-22 = NC State (6–2)
|Week10-22-Color= u
|Week10-23 = Penn State (5–3)
|Week10-23-Color= d
|Week10-24 = SMU (7–1)
|Week10-24-Color= d
|Week10-25 = Pittsburgh (6–2)
|Week10-25-Color= d
|Week10Dropped = {{ubl|San Diego State|Iowa State}}
|Week11-1 = Georgia (9–0) (64)
|Week11-1-Color =
|Week11-2 = Alabama (8–1)
|Week11-2-Color = u
|Week11-3 = Cincinnati (9–0)
|Week11-3-Color = d
|Week11-4 = Oklahoma (9–0)
|Week11-4-Color =
|Week11-5 = Ohio State (8–1)
|Week11-5-Color =
|Week11-6 = Oregon (8–1)
|Week11-6-Color = u
|Week11-7 = Notre Dame (8–1)
|Week11-7-Color = u
|Week11-8 = Michigan (8–1)
|Week11-8-Color = u
|Week11-9 = Michigan State (8–1)
|Week11-9-Color = d
|Week11-10 = Oklahoma State (8–1)
|Week11-10-Color= u
|Week11-11 = Texas A&M (7–2)
|Week11-11-Color= u
|Week11-12 = Ole Miss (7–2)
|Week11-12-Color= u
|Week11-13 = Wake Forest (8–1)
|Week11-13-Color= d
|Week11-14 = Iowa (7–2)
|Week11-14-Color= u
|Week11-15 = BYU (8–2)
|Week11-15-Color= u
|Week11-16 = UTSA (9–0)
|Week11-16-Color= u
|Week11-17 = Houston (8–1)
|Week11-17-Color= u
|Week11-18 = Baylor (7–2)
|Week11-18-Color= d
|Week11-19 = NC State (7–2)
|Week11-19-Color= u
|Week11-20 = Auburn (6–3)
|Week11-20-Color= d
|Week11-21 = Coastal Carolina (8–1)
|Week11-21-Color=
|Week11-22 = Pittsburgh (7–2)
|Week11-22-Color= u
|Week11-23 = Penn State (6–3)
|Week11-23-Color=
|Week11-24 = Wisconsin (6–3)
|Week11-24-Color= npr
|Week11-25 = Louisiana (8–1)
|Week11-25-Color= npr
|Week11Dropped = {{ubl|Kentucky|SMU}}
|Week12-1 = Georgia (10–0) (62)
|Week12-1-Color =
|Week12-2 = Alabama (9–1)
|Week12-2-Color =
|Week12-3 = Cincinnati (10–0)
|Week12-3-Color =
|Week12-4 = Ohio State (9–1)
|Week12-4-Color = u
|Week12-5 = Oregon (9–1)
|Week12-5-Color = u
|Week12-6 = Notre Dame (8–1)
|Week12-6-Color = u
|Week12-7 = Michigan (9–1)
|Week12-7-Color = u
|Week12-8 = Michigan State (9–1)
|Week12-8-Color = u
|Week12-9 = Oklahoma State (9–1)
|Week12-9-Color = u
|Week12-10 = Ole Miss (8–2)
|Week12-10-Color= u
|Week12-11 = Oklahoma (9–1)
|Week12-11-Color= d
|Week12-12 = Wake Forest (9–1)
|Week12-12-Color= u
|Week12-13 = Baylor (8–2)
|Week12-13-Color= u
|Week12-14 = Iowa (8–2)
|Week12-14-Color=
|Week12-15 = BYU (8–2)
|Week12-15-Color=
|Week12-16 = Texas A&M (7–3)
|Week12-16-Color= d
|Week12-17 = Houston (9–1)
|Week12-17-Color=
|Week12-18 = UTSA (10–0)
|Week12-18-Color= d
|Week12-19 = Pittsburgh (8–2)
|Week12-19-Color= u
|Week12-20 = Wisconsin (7–3)
|Week12-20-Color= u
|Week12-21 = Louisiana (9–1)
|Week12-21-Color= u
|Week12-22 = Arkansas (7–3)
|Week12-22-Color= npr
|Week12-23 = San Diego State (9–1)
|Week12-23-Color= npr
|Week12-24 = NC State (7–3)
|Week12-24-Color= d
|Week12-25 = Utah (7–3)
|Week12-25-Color= npr
|Week12Dropped = {{ubl|Auburn|Coastal Carolina|Penn State}}
|Week13-1 = Georgia (11–0) (62)
|Week13-1-Color =
|Week13-2 = Alabama (10–1)
|Week13-2-Color =
|Week13-3 = Ohio State (10–1)
|Week13-3-Color = u
|Week13-4 = Cincinnati (11–0)
|Week13-4-Color = d
|Week13-5 = Notre Dame (10–1)
|Week13-5-Color = u
|Week13-6 = Michigan (10–1)
|Week13-6-Color = u
|Week13-7 = Oklahoma State (10–1)
|Week13-7-Color = u
|Week13-8 = Ole Miss (9–2)
|Week13-8-Color = u
|Week13-9 = Oklahoma (10–1)
|Week13-9-Color = u
|Week13-10 = Baylor (9–2)
|Week13-10-Color= u
|Week13-11 = Oregon (9–2)
|Week13-11-Color= d
|Week13-12 = Iowa (9–2)
|Week13-12-Color= u
|Week13-13 = Michigan State (9–2)
|Week13-13-Color= d
|Week13-14 = Texas A&M (8–3)
|Week13-14-Color= u
|Week13-15 = BYU (9–2)
|Week13-15-Color=
|Week13-16 = Houston (10–1)
|Week13-16-Color= u
|Week13-17 = Pittsburgh (9–2)
|Week13-17-Color= u
|Week13-18 = Wisconsin (8–3)
|Week13-18-Color= u
|Week13-19 = Utah (8–3)
|Week13-19-Color= u
|Week13-20 = UTSA (11–0)
|Week13-20-Color= d
|Week13-21 = Wake Forest (9–2)
|Week13-21-Color= d
|Week13-22 = San Diego State (10–1)
|Week13-22-Color= u
|Week13-23 = Louisiana (10–1)
|Week13-23-Color= d
|Week13-24 = NC State (8–3)
|Week13-24-Color=
|Week13-25 = Kentucky (8–3)
|Week13-25-Color= npr
|Week13Dropped = Arkansas
|Week14-1 = Georgia (12–0) (62)
|Week14-1-Color =
|Week14-2 = Alabama (11–1)
|Week14-2-Color =
|Week14-3 = Michigan (11–1)
|Week14-3-Color = u
|Week14-4 = Cincinnati (12–0)
|Week14-4-Color =
|Week14-5 = Oklahoma State (11–1)
|Week14-5-Color = u
|Week14-6 = Notre Dame (11–1)
|Week14-6-Color = d
|Week14-7 = Ohio State (10–2)
|Week14-7-Color = d
|Week14-8 = Ole Miss (10–2)
|Week14-8-Color =
|Week14-9 = Baylor (10–2)
|Week14-9-Color = u
|Week14-10 = Oregon (10–2)
|Week14-10-Color= u
|Week14-11 = Oklahoma (10–2)
|Week14-11-Color= d
|Week14-12 = Iowa (10–2)
|Week14-12-Color=
|Week14-13 = Michigan State (10–2)
|Week14-13-Color=
|Week14-14 = BYU (10–2)
|Week14-14-Color= u
|Week14-15 = Pittsburgh (10–2)
|Week14-15-Color= u
|Week14-16 = Houston (11–1)
|Week14-16-Color=
|Week14-17 = Utah (9–3)
|Week14-17-Color= u
|Week14-18 = Wake Forest (10–2)
|Week14-18-Color= u
|Week14-19 = San Diego State (11–1)
|Week14-19-Color= u
|Week14-20 = NC State (9–3)
|Week14-20-Color= u
|Week14-21 = Louisiana (11–1)
|Week14-21-Color= u
|Week14-22 = Kentucky (9–3)
|Week14-22-Color= u
|Week14-23 = Texas A&M (8–4)
|Week14-23-Color= d
|Week14-24 = Clemson (9–3)
|Week14-24-Color= npr
|Week14-25 = Arkansas (8–4)
|Week14-25-Color= npr
|Week14Dropped = {{ubl|Wisconsin|UTSA}}
|Week15-1 = Alabama (12–1) (54)
|Week15-1-Color = u
|Week15-2 = Michigan (12–1) (5)
|Week15-2-Color = u
|Week15-3 = Georgia (12–1)
|Week15-3-Color = d
|Week15-4 = Cincinnati (13–0) (3)
|Week15-4-Color =
|Week15-5 = Notre Dame (11–1)
|Week15-5-Color = u
|Week15-6 = Baylor (11–2)
|Week15-6-Color = u
|Week15-7 = Ohio State (10–2)
|Week15-7-Color =
|Week15-8 = Ole Miss (10–2)
|Week15-8-Color =
|Week15-9 = Oklahoma State (11–2)
|Week15-9-Color = d
|Week15-10 = Michigan State (10–2)
|Week15-10-Color= u
|Week15-11 = Utah (10–3)
|Week15-11-Color= u
|Week15-12 = Pittsburgh (11–2)
|Week15-12-Color= u
|Week15-13 = Oklahoma (10–2)
|Week15-13-Color= d
|Week15-14 = BYU (10–2)
|Week15-14-Color=
|Week15-15 = Oregon (10–3)
|Week15-15-Color= d
|Week15-16 = Iowa (10–3)
|Week15-16-Color= d
|Week15-17 = Louisiana (12–1)
|Week15-17-Color= u
|Week15-18 = NC State (9–3)
|Week15-18-Color= u
|Week15-19 = Wake Forest (10–3)
|Week15-19-Color= d
|Week15-20 = Kentucky (9–3)
|Week15-20-Color= u
|Week15-21 = Houston (11–2)
|Week15-21-Color= d
|Week15-22 = Clemson (9–3)
|Week15-22-Color= u
|Week15-23 = Texas A&M (8–4)
|Week15-23-Color=
|Week15-24 = Arkansas (8–4)
|Week15-24-Color= u
|Week15-25 = UTSA (12–1)
|Week15-25-Color= npr
|Week15Dropped = {{ubl|San Diego State}}
|Week16-1 = Georgia (14–1) (62)
|Week16-1-Color = u
|Week16-2 = Alabama (13–2)
|Week16-2-Color = d
|Week16-3 = Michigan (12–2)
|Week16-3-Color = d
|Week16-4 = Cincinnati (13–1)
|Week16-4-Color =
|Week16-5 = Ohio State (11–2)
|Week16-5-Color = u
|Week16-6 = Baylor (12–2)
|Week16-6-Color =
|Week16-7 = Oklahoma State (12–2)
|Week16-7-Color = u
|Week16-8 = Michigan State (11–2)
|Week16-8-Color = u
|Week16-9 = Notre Dame (11–2)
|Week16-9-Color = d
|Week16-10 = Oklahoma (11–2)
|Week16-10-Color= u
|Week16-11 = Ole Miss (10–3)
|Week16-11-Color= d
|Week16-12 = Utah (10–4)
|Week16-12-Color= d
|Week16-13 = Pittsburgh (11–3)
|Week16-13-Color= d
|Week16-14 = Wake Forest (11–3)
|Week16-14-Color= u
|Week16-15 = Kentucky (10–3)
|Week16-15-Color= u
|Week16-16 = Clemson (10–3)
|Week16-16-Color= u
|Week16-17 = Houston (12–2)
|Week16-17-Color= u
|Week16-18 = Louisiana (13–1)
|Week16-18-Color= d
|Week16-19 = NC State (9–3)
|Week16-19-Color= d
|Week16-20 = Arkansas (9–4)
|Week16-20-Color= u
|Week16-21 = Oregon (10–4)
|Week16-21-Color= d
|Week16-22 = BYU (10–3)
|Week16-22-Color= d
|Week16-23 = Iowa (10–4)
|Week16-23-Color= d
|Week16-24 = Utah State (11–3)
|Week16-24-Color= npr
|Week16-25 = Texas A&M (8–4)
|Week16-25-Color= d
|Week16Dropped = UTSA
}}
CFP rankings
The initial 2021 College Football Playoff rankings were released on Tuesday, November 2, 2021.{{cite web |title=COLLEGE FOOTBALL PLAYOFF SELECTION COMMITTEE PREPARES FOR 2021-22 SEASON |url=https://collegefootballplayoff.com/news/2021/8/13/selection-committee-prepares-for-2021-22.aspx |website=CollegeFootballPlayoff.com |publisher=College Football Playoff |access-date=19 September 2021 |date=13 August 2021}}
{{ColPollTable
|Week1 = 9
|Week2 = 10
|Week3 = 11
|Week4 = 12
|Week5 = 13
|Week6 = 14 (Final)
|Week1Date= Nov. 2{{cite news|url=https://collegefootballplayoff.com/rankings.aspx?year=2021|title=Rankings: 2021 Week 1|work=College Football Playoff|date=November 2, 2021}}
|Week2Date= Nov. 9 {{cite news|url=https://collegefootballplayoff.com/rankings.aspx?year=2021|title=Rankings: 2021 Week 2|work=College Football Playoff|date=November 9, 2021}}
|Week3Date= Nov. 16{{cite news|url=https://collegefootballplayoff.com/rankings.aspx?year=2021|title=Rankings: 2021 Week 3|work=College Football Playoff|date=November 16, 2021}}
|Week4Date= Nov. 23 {{cite news|url=https://collegefootballplayoff.com/rankings.aspx?year=2021|title=Rankings: 2021 Week 4|work=College Football Playoff|date=November 23, 2021}}
|Week5Date= Nov. 30 {{cite news|url=https://collegefootballplayoff.com/rankings.aspx?year=2021|title=Rankings: 2021 Week 5|work=College Football Playoff|date=November 30, 2021}}
|Week6Date= Dec. 5 {{cite news|url=https://collegefootballplayoff.com/rankings.aspx?year=2021|title=Rankings: 2021 Week 6|work=College Football Playoff|date=December 5, 2021}}
|Week1-1 = Georgia (8–0)
|Week1-2 = Alabama (7–1)
|Week1-3 = Michigan State (8–0)
|Week1-4 = Oregon (7–1)
|Week1-5 = Ohio State (7–1)
|Week1-6 = Cincinnati (8–0)
|Week1-7 = Michigan (7–1)
|Week1-8 = Oklahoma (9–0)
|Week1-9 = Wake Forest (8–0)
|Week1-10 = Notre Dame (7–1)
|Week1-11 = Oklahoma State (7–1)
|Week1-12 = Baylor (7–1)
|Week1-13 = Auburn (6–2)
|Week1-14 = Texas A&M (6–2)
|Week1-15 = BYU (7–2)
|Week1-16 = Ole Miss (6–2)
|Week1-17 = Mississippi State (5–3)
|Week1-18 = Kentucky (6–2)
|Week1-19 = NC State (6–2)
|Week1-20 = Minnesota (6–2)
|Week1-21 = Wisconsin (5–3)
|Week1-22 = Iowa (6–2)
|Week1-23 = Fresno State (7–2)
|Week1-24 = San Diego State (7–1)
|Week1-25 = Pittsburgh (6–2)
|Week2-1 = Georgia (9–0)
|Week2-1-Color =
|Week2-2 = Alabama (8–1)
|Week2-2-Color =
|Week2-3 = Oregon (8–1)
|Week2-3-Color = u
|Week2-4 = Ohio State (8–1)
|Week2-4-Color = u
|Week2-5 = Cincinnati (9–0)
|Week2-5-Color = u
|Week2-6 = Michigan (8–1)
|Week2-6-Color = u
|Week2-7 = Michigan State (8–1)
|Week2-7-Color = d
|Week2-8 = Oklahoma (9–0)
|Week2-8-Color =
|Week2-9 = Notre Dame (8–1)
|Week2-9-Color = u
|Week2-10 = Oklahoma State (8–1)
|Week2-10-Color = u
|Week2-11 = Texas A&M (7–2)
|Week2-11-Color = u
|Week2-12 = Wake Forest (8–1)
|Week2-12-Color = d
|Week2-13 = Baylor (7–2)
|Week2-13-Color = d
|Week2-14 = BYU (8–2)
|Week2-14-Color = u
|Week2-15 = Ole Miss (7–2)
|Week2-15-Color = u
|Week2-16 = NC State (7–2)
|Week2-16-Color = u
|Week2-17 = Auburn (6–3)
|Week2-17-Color = d
|Week2-18 = Wisconsin (6–3)
|Week2-18-Color = u
|Week2-19 = Purdue (6–3)
|Week2-19-Color = npr
|Week2-20 = Iowa (7–2)
|Week2-20-Color = u
|Week2-21 = Pittsburgh (7–2)
|Week2-21-Color = u
|Week2-22 = San Diego State (8–1)
|Week2-22-Color = u
|Week2-23 = UTSA (9–0)
|Week2-23-Color = npr
|Week2-24 = Utah (6–3)
|Week2-24-Color = npr
|Week2-25 = Arkansas (6–3)
|Week2-25-Color = npr
|Week2Dropped = {{ubl|Mississippi State|Kentucky|Minnesota|Fresno State}}
|Week3-1 = Georgia (10–0)
|Week3-1-Color =
|Week3-2 = Alabama (9–1)
|Week3-2-Color =
|Week3-3 = Oregon (9–1)
|Week3-3-Color =
|Week3-4 = Ohio State (9–1)
|Week3-4-Color =
|Week3-5 = Cincinnati (10–0)
|Week3-5-Color =
|Week3-6 = Michigan (9–1)
|Week3-6-Color =
|Week3-7 = Michigan State (9–1)
|Week3-7-Color =
|Week3-8 = Notre Dame (9–1)
|Week3-8-Color = u
|Week3-9 = Oklahoma State (9–1)
|Week3-9-Color = u
|Week3-10 = Wake Forest (9–1)
|Week3-10-Color = u
|Week3-11 = Baylor (8–2)
|Week3-11-Color = u
|Week3-12 = Ole Miss (8–2)
|Week3-12-Color = u
|Week3-13 = Oklahoma (9–1)
|Week3-13-Color = d
|Week3-14 = BYU (8–2)
|Week3-14-Color =
|Week3-15 = Wisconsin (7–3)
|Week3-15-Color = u
|Week3-16 = Texas A&M (7–3)
|Week3-16-Color = d
|Week3-17 = Iowa (8–2)
|Week3-17-Color = u
|Week3-18 = Pittsburgh (8–2)
|Week3-18-Color = u
|Week3-19 = San Diego State (9–1)
|Week3-19-Color = u
|Week3-20 = NC State (7–3)
|Week3-20-Color = d
|Week3-21 = Arkansas (7–3)
|Week3-21-Color = u
|Week3-22 = UTSA (10–0)
|Week3-22-Color = u
|Week3-23 = Utah (7–3)
|Week3-23-Color = u
|Week3-24 = Houston (9–1)
|Week3-24-Color = npr
|Week3-25 = Mississippi State (6–4)
|Week3-25-Color = npr
|Week3Dropped = {{ubl|Auburn|Purdue}}
|Week4-1 = Georgia (11–0)
|Week4-1-Color =
|Week4-2 = Ohio State (10–1)
|Week4-2-Color = u
|Week4-3 = Alabama (10–1)
|Week4-3-Color = d
|Week4-4 = Cincinnati (11–0)
|Week4-4-Color = u
|Week4-5 = Michigan (10–1)
|Week4-5-Color = u
|Week4-6 = Notre Dame (10–1)
|Week4-6-Color = u
|Week4-7 = Oklahoma State (10–1)
|Week4-7-Color = u
|Week4-8 = Baylor (9–2)
|Week4-8-Color = u
|Week4-9 = Ole Miss (9–2)
|Week4-9-Color = u
|Week4-10 = Oklahoma (10–1)
|Week4-10-Color = u
|Week4-11 = Oregon (9–2)
|Week4-11-Color = d
|Week4-12 = Michigan State (9–2)
|Week4-12-Color = d
|Week4-13 = BYU (9–2)
|Week4-13-Color = u
|Week4-14 = Wisconsin (8–3)
|Week4-14-Color = u
|Week4-15 = Texas A&M (8–3)
|Week4-15-Color = u
|Week4-16 = Iowa (9–2)
|Week4-16-Color = u
|Week4-17 = Pittsburgh (9–2)
|Week4-17-Color = u
|Week4-18 = Wake Forest (9–2)
|Week4-18-Color = d
|Week4-19 = Utah (8–3)
|Week4-19-Color = u
|Week4-20 = NC State (8–3)
|Week4-20-Color =
|Week4-21 = San Diego State (10–1)
|Week4-21-Color = d
|Week4-22 = UTSA (11–0)
|Week4-22-Color =
|Week4-23 = Clemson (8–3)
|Week4-23-Color = npr
|Week4-24 = Houston (10–1)
|Week4-24-Color =
|Week4-25 = Arkansas (7–4)
|Week4-25-Color = d
|Week4Dropped = {{ubl|Mississippi State}}
|Week5-1 = Georgia (12–0)
|Week5-1-Color =
|Week5-2 = Michigan (11–1)
|Week5-2-Color = u
|Week5-3 = Alabama (11–1)
|Week5-3-Color =
|Week5-4 = Cincinnati (12–0)
|Week5-4-Color =
|Week5-5 = Oklahoma State (11–1)
|Week5-5-Color = u
|Week5-6 = Notre Dame (11–1)
|Week5-6-Color =
|Week5-7 = Ohio State (10–2)
|Week5-7-Color = d
|Week5-8 = Ole Miss (10–2)
|Week5-8-Color = u
|Week5-9 = Baylor (10–2)
|Week5-9-Color = d
|Week5-10 = Oregon (10–2)
|Week5-10-Color = u
|Week5-11 = Michigan State (10–2)
|Week5-11-Color = u
|Week5-12 = BYU (10–2)
|Week5-12-Color = u
|Week5-13 = Iowa (10–2)
|Week5-13-Color = u
|Week5-14 = Oklahoma (10–2)
|Week5-14-Color = d
|Week5-15 = Pittsburgh (10–2)
|Week5-15-Color = u
|Week5-16 = Wake Forest (10–2)
|Week5-16-Color = u
|Week5-17 = Utah (9–3)
|Week5-17-Color = u
|Week5-18 = NC State (9–3)
|Week5-18-Color = u
|Week5-19 = San Diego State (11–1)
|Week5-19-Color = u
|Week5-20 = Clemson (9–3)
|Week5-20-Color = u
|Week5-21 = Houston (11–1)
|Week5-21-Color = u
|Week5-22 = Arkansas (8–4)
|Week5-22-Color = u
|Week5-23 = Kentucky (9–3)
|Week5-23-Color = npr
|Week5-24 = Louisiana (11–1)
|Week5-24-Color = npr
|Week5-25 = Texas A&M (8–4)
|Week5-25-Color = d
|Week5Dropped = UTSA
Wisconsin
|Week6-1 = Alabama (12–1)
|Week6-1-Color = nc
|Week6-2 = Michigan (12–1)
|Week6-2-Color = nc
|Week6-3 = Georgia (12–1)
|Week6-3-Color = nc
|Week6-4 = Cincinnati (13–0)
|Week6-4-Color = nc
|Week6-5 = Notre Dame (11–1)
|Week6-5-Color = u
|Week6-6 = Ohio State (10–2)
|Week6-6-Color = u
|Week6-7 = Baylor (11–2)
|Week6-7-Color = u
|Week6-8 = Ole Miss (10–2)
|Week6-8-Color =
|Week6-9 = Oklahoma State (11–2)
|Week6-9-Color = d
|Week6-10 = Michigan State (10–2)
|Week6-10-Color = u
|Week6-11 = Utah (10–3)
|Week6-11-Color = u
|Week6-12 = Pittsburgh (11–2)
|Week6-12-Color = u
|Week6-13 = BYU (10–2)
|Week6-13-Color = d
|Week6-14 = Oregon (10–3)
|Week6-14-Color = d
|Week6-15 = Iowa (10–3)
|Week6-15-Color = d
|Week6-16 = Oklahoma (10–2)
|Week6-16-Color = d
|Week6-17 = Wake Forest (10–3)
|Week6-17-Color = d
|Week6-18 = NC State (9–3)
|Week6-18-Color =
|Week6-19 = Clemson (9–3)
|Week6-19-Color = u
|Week6-20 = Houston (11–2)
|Week6-20-Color = u
|Week6-21 = Arkansas (8–4)
|Week6-21-Color = u
|Week6-22 = Kentucky (9–3)
|Week6-22-Color = u
|Week6-23 = Louisiana (12–1)
|Week6-23-Color = u
|Week6-24 = San Diego State (11–2)
|Week6-24-Color = d
|Week6-25 = Texas A&M (8–4)
|Week6-25-Color =
|Week6Dropped =
}}
Notes
{{Notelist}}
References
{{Reflist}}
{{NCAA football rankings navbox}}
{{2021 NCAA Division I FBS football season navbox}}