| Position: | Tackle |
| Birth Date: | 5 March 1904 |
| Birth Place: | Bayonne, New Jersey |
| Death Place: | Bay Head, New Jersey |
| Weight Lbs: | 190 |
| High School: | Bayonne (NJ) |
| Teams: |
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| Pfr: | DemmJo20 |
John Demmy (March 5, 1904 – March 1970), born Demyanovich,[1] was an American football player.
Demmy was born in 1904 in Bayonne, New Jersey.[1] He played professional football in the National Football League (NFL) as a tackle for the Staten Island Stapletons during the 1930 and 1931 seasons. He appeared in nine NFL games, three as a starter.[1] [2] [3] He also played for the Paterson Night Hawks of the Eastern Football League in 1932.[1]
Demmy's younger brother, Joe Demyanovich, played college football for Alabama from 1931 to 1934.[4] Another brother, George Demmy, also played football.[5]
Demmy died in 1970 in either Point Pleasant Beach or Bay Head, New Jersey (sources differ).[2] [6]