1999 NAIA World Series
{{Use mdy dates|date=August 2023}}
{{Infobox NCAA Baseball Conference Tournament |
| Year=1999
| Conference=NAIA
| ShortConference=NAIA
| Image=National Association of Intercollegiate Athletics logo.svg
| ImageSize=200
| Caption = 1999 NAIA World Series
| Teams = 10
| Format = Double elimination
Page playoff
| Ballpark = Roger Dean Stadium
| City = {{flagicon|Florida}} Jupiter, Florida
| Champions = Lewis–Clark State
| TitleCount = 10th
| Coach = Ed Cheff
| MVP = Jason Ellison (OF)
| MVPTeam = Lewis–Clark State
| Different Previous=1998
}}
The 1999 NAIA World Series was the 43rd annual tournament hosted by the National Association of Intercollegiate Athletics to determine the national champion of baseball among its member colleges and universities in the United States and Canada.{{cite web |title=Championship History |url=https://www.naia.org/sports/bsb/Records/BSB_Championship.pdf |website=NAIA.org |publisher=National Association of Intercollegiate Athletics |access-date=25 September 2022}}
The tournament was played, for the one and only time, at Roger Dean Stadium in Jupiter, Florida.
Lewis–Clark State (57–14) defeated defending champions Albertson (50–19) in the second game of a two-game championship series, 7–2, to win the Warriors' tenth NAIA World Series and first since 1996.
Lewis–Clark State outfielder, and future major leaguer, Jason Ellison was named tournament MVP.
Bracket
=Preliminary bracket=
{{10TeamBracket-2Elim
| seeds = no
| maxround = 4
| team-width = 170
| boldwinner = yes
| byes = yes
| RD1=First round
Losers to Consolation Bracket
Second Round
| RD2=Second round
Losers to Consolation Bracket
Second or Third Round
| RD3=Third round
Losers to Consolation Bracket
Fourth Round
| RD4=Fourth round
Both teams to Championship Bracket
Semifinals
| RD1-seed1=
| RD1-team1=Albertson
| RD1-score1=9
| RD1-seed2=
| RD1-team2=Indiana Tech
| RD1-score2=8
| RD1-seed3=
| RD1-team3=Culver–Stockton
| RD1-score3=7
| RD1-seed4=
| RD1-team4=Dominican (NY)
| RD1-score4=1
| RD2-seed1=
| RD2-team1=Oklahoma City
| RD2-score1=2
| RD2-seed2=
| RD2-team2=Albertson
| RD2-score2=9
| RD2-seed3=
| RD2-team3=Birmingham–Southern
| RD2-score3=7
| RD2-seed4=
| RD2-team4=Embry–Riddle
| RD2-score4=3
| RD2-seed5=
| RD2-team5=Lewis–Clark State
| RD2-score5=14
| RD2-seed6=
| RD2-team6=Culver–Stockton
| RD2-score6=0
| RD2-seed7=
| RD2-team7=Bellevue (NE)
| RD2-score7=12
| RD2-seed8=
| RD2-team8=Dallas Baptist
| RD2-score8=10
| RD3-seed1=
| RD3-team1=Albertson
| RD3-score1=7
| RD3-seed2=
| RD3-team2=Birmingham–Southern
| RD3-score2=5
| RD3-seed3=
| RD3-team3=Lewis–Clark State
| RD3-score3=9
| RD3-seed4=
| RD3-team4=Bellevue
| RD3-score4=4
| RD4-seed1=
| RD4-team1=Albertson
| RD4-score1=3
| RD4-seed2=
| RD4-team2=Lewis–Clark State
| RD4-score2=7
| RD1b = Second Round
Losers eliminated
| RD2b = Third Round
Losers eliminated
| RD3b = Fourth Round
Losers eliminated,
Winners to Semifinals
| RD4b = Semifinals
| RD1b-seed1=
| RD1b-team1=Dominican
| RD1b-score1=8
| RD1b-seed2=
| RD1b-team2=Dallas Baptist
| RD1b-score2=17
| RD1b-seed3=
| RD1b-team3=Indiana Tech
| RD1b-score3=9
| RD1b-seed4=
| RD1b-team4=Embry–Riddle
| RD1b-score4=8
| RD2b-seed1=
| RD2b-team1=Oklahoma City
| RD2b-score1=14
| RD2b-seed2=
| RD2b-team2=Dallas Baptist
| RD2b-score2=3
| RD2b-seed3=
| RD2b-team3=Culver–Stockton
| RD2b-score3=6
| RD2b-seed4=
| RD2b-team4=Indiana Tech
| RD2b-score4=5
| RD3b-seed1=
| RD3b-team1=Birmingham–Southern
| RD3b-score1=8
| RD3b-seed2=
| RD3b-team2=Oklahoma City
| RD3b-score2=6
| RD3b-seed3=
| RD3b-team3=Bellevue
| RD3b-score3=3
| RD3b-seed4=
| RD3b-team4=Culver–Stockton
| RD3b-score4=7
}}
=Championship bracket=
{{4TeamBracket
| RD1=Semifinals
| RD2=Championship
| team-width= 170
| seeds = no
| boldwinner = yes
| legs = 1/2
| RD1-seed1=
| RD1-team1=Lewis–Clark State
| RD1-score1=3
| RD1-seed2=
| RD1-team2=Birmingham–Southern
| RD1-score2=0
| RD1-seed3=
| RD1-team3=Albertson
| RD1-score3=7
| RD1-seed4=
| RD1-team4=Culver–Stockton
| RD1-score4=2
| RD2-seed1=
| RD2-team1=Lewis–Clark State
| RD2-score1-1=1
| RD2-score1-2=7
| RD2-seed2=
| RD2-team2=Albertson
| RD2-score2-1=2
| RD2-score2-2=2
}}