Junior Mahony
| Personal information | |||
|---|---|---|---|
| Irish name | Seán Ó Mathúna | ||
| Sport | Hurling | ||
| Position | Goalkeeper | ||
| Born | 
John Mahony 20 August 1897 Ardrahan, County Galway, Ireland  | ||
| Died | 
8 May 1973 (aged 75) Galway, Ireland  | ||
| Nickname | Junior | ||
| Occupation | Farmer | ||
| Club(s) | |||
| Years | Club | ||
| Ardrahan | |||
| Club titles | |||
| Galway titles | 0 | ||
| Inter-county(ies) | |||
| Years | County | ||
1919-1929  | Galway | ||
| Inter-county titles | |||
| Connacht titles | 1 | ||
| All-Irelands | 1 | ||
| NHL | 0 | ||
John "Junior" Mahony (20 August 1897 – 8 May 1973) was an Irish hurler. Usually lining out as a goalkeeper, he was a member of the Galway team that won the 1923 All-Ireland Championship.