:John Rienstra

{{Short description|American football player (born 1963)}}

{{Use mdy dates|date=June 2024}}

{{BLP sources|date=September 2014}}

{{Use American English|date=April 2024}}

{{Infobox NFL biography

| name = John Rienstra

| number = 79, 70

| position = Guard

| birth_date = {{Birth date and age|1963|3|22}}

| birth_place = Grand Rapids, Michigan, U.S.

| height_ft = 6

| height_in = 5

| weight_lb = 273

| high_school = Academy of the New Church Secondary Schools
(Bryn Athyn, Pennsylvania)

| college = Temple

| draftyear = 1986

| draftround = 1

| draftpick = 9

| pastteams =

• Pittsburgh Steelers ({{NFL Year|1986|1990}})
• Cleveland Browns ({{NFL Year|1991|1992}})

| highlights =

• Consensus All-American (1985)
• 2× First-team All-East (1984, 1985)

| statlabel1 = Games played

| statvalue1 = 65

| statlabel2 = Games started

| statvalue2 = 48

| statlabel3 = Fumble recoveries

| statvalue3 = 3

| pfr = RienJo20

}}

John William Rienstra (born March 22, 1963) is an American former professional football player who was a guard for seven seasons in the National Football League (NFL) for the Pittsburgh Steelers and Cleveland Browns. Rienstra attended Temple University after graduating from the Academy of the New Church Secondary Schools.

At the 1986 NFL draft, the Steelers selected Rienstra with the ninth overall pick in the first round.{{Cite web |title=1986 NFL Draft Listing |url=https://www.pro-football-reference.com/years/1986/draft.htm |access-date=2023-10-01 |website=Pro-Football-Reference.com |language=en}}

On July 6, 2016, Rienstra discovered the remains of Joe Keller, a man from Cleveland, Tennessee, who had gone missing while on a jog on July 23, 2015, in a remote and rugged area of the Rio Grande National Forest in Conejos County, Colorado.{{Cite web|url=https://www.outsideonline.com/2164446/leave-no-trace|title=How 1,600 People Disappeared on Our Public Lands|first=Jon|last=Billman|date=March 13, 2017|website=Outside Online}}{{Cite web|url=https://www.denverpost.com/2016/08/08/joe-keller-remains-confirmed/|title=DNA confirms remains found in Conejos County are those of missing teen Joe Keller|first=Jesse|last=Paul|date=August 8, 2016|website=The Denver Post}}