| Birth Date: | 25 April 1924 |
| Birth Place: | Rosedale, Ohio, U.S. |
| Position1: | Center |
| College: | Oklahoma |
| Nfldraftedyear: | 1947 |
| Nfldraftedround: | 3 |
| Nfldraftedpick: | 15 (By the Boston Yanks) |
| Playing Years1: | 1948–1949 |
| Playing Team1: | Chicago Rockets/Hornets (AAFC) |
| Playing Years2: | 1950–1954 |
| Playing Team2: | New York Giants |
| Career Highlights: |
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| Nfl: | RAP166116 |
| Databasefootball: | RAPACJOH01 |
John Joseph Rapacz (April 25, 1924 - January 2, 1991) was an American football offensive lineman in the National Football League (NFL) for the New York Giants. He also played in the All-America Football Conference (AAFC) for the Chicago Rockets/Hornets. Rapacz played college football and baseball at the University of Oklahoma, where he was an All-American in football, and was drafted in the third round of the 1947 NFL draft by the Boston Yanks.[1] After retiring from the NFL Rapacz went on to become a Michigan High School Hall of Fame football coach for Hackett Catholic Central High School.
In 1954 John was traded to the Baltimore Colts. He retired at the end of the 1955 season. He returned to college, finished his degree, became a teacher and Football coach at Hackett Catholic High School.