Johnny Olszewski

John Peter Olszewski (December 21, 1929 – December 8, 1996) was an American football fullback. He was drafted in the first round (fourth overall) of the 1953 NFL draft and played professionally for the Chicago Cardinals, the Washington Redskins and the Detroit Lions of the National Football League (NFL). He was selected to the Pro Bowl after the 1953 and 1955 seasons. Known as "Johnny O", he was among the first NFL players to wear the jersey number zero.

He concluded his career in the American Football League (AFL) with the Denver Broncos in 1962.

He played college football for the California Golden Bears, where he was named second-team All-American in 1952. He is still the No. 10 ground-gainer in school history with 2,504 yards.

He was inducted into the California Athletics Hall of Fame in 1993.

He is buried at All Souls cemetery in Long Beach.