| Jack Mahon | |
| Fullname: | John Mahon |
| Birth Date: | 1886 |
| Birth Place: | Northwich, England[1] |
| Position: | Half Back |
| Youthclubs1: | Clowne Whitestar |
| Years1: | –1908 |
| Clubs1: | Worksop Town |
| Years2: | 1908–1909 |
| Years3: | 1909–1920 |
| Clubs3: | New Brompton/Gillingham |
| Years4: | 1920–1921 |
| Clubs4: | Doncaster Rovers |
| Goals4: | 3 |
John Mahon (born 1886) was an English professional footballer who played as a half back.
After playing for minor teams Clowne White Star and Worksop Town he joined Football League club Gainsborough Trinity in 1908.[1] He played 22 times for the club before joining New Brompton in 1909. He remained with the club, later renamed Gillingham, until 1920 and made over 250 appearances.[2] He also gained the club's first ever representative honour when he played for a Southern League XI against an equivalent team from The Football League in 1910.[3]
In 1920 he left Gillingham to join Doncaster Rovers[1] where he played in their first game in their return to football following WW1, in the 2–1 defeat to Rotherham Town in the Midland League.[4] He scored 3 goals during that season, 2 of them as penalties.[4]
His son, also called Jack Mahon, played professionally, notably for Leeds United and West Bromwich Albion in the 1930s.[5]