John Rienstra

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 Reinstra with the ninth overall pick in the first round.

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.