John Leo Mann (February 4, 1898 – March 31, 1977) was an American Major League Baseball player who played for the Chicago White Sox in 1928. He was used as a pinch hitter and a third baseman.
Johnny Mann
| Given name: | John Leo Mann |
| Nicknames: | None |
| Primary Pos: | Thirdbase |
| Hght/Wght: | 5'11" / 160 lbs |
| Bats/Throws: | R / R |
| Born: | Feb 4, 1898 in Fontanet, IN |
| Died: | Mar 31, 1977 in Terre Haute, IN (79 years old) |
| Debut: | Apr 18, 1928 |