| Code: | Football |
| Sport: | Gaelic football |
| William Gannon | |
| Irish: | Liam Mag Fhionnáin |
| Nickname: | Squires |
| County: | Kildare |
| Province: | Leinster |
| Club: | Round Towers |
| Clcounty: | 3 |
| Counties: | Kildare |
| Icposition: | Midfield |
| Icyears: | 1925-1929 |
| Icprovince: | 4 |
| Icallireland: | 2 |
| Nfl: | 0 |
| Birth Date: | 28 April 1901 |
| Birth Place: | Newbridge, County Kildare, Ireland |
| Death Place: | Kildare Town, County Kildare, Ireland |
| Death Date: | 6 March 1967 (aged 65) |
William "Squires" Gannon (28 April 1901 – 6 March 1967) was an Irish Gaelic footballer who played as a midfielder for the Kildare senior team.[1]
Regarded as one of Kildare's greatest-ever players, Gannon was a regular member of the starting fifteen during the team's golden age of the 1920s. During that time he won two All-Ireland medals and four Leinster medals. An All-Ireland runner-up on two occasions, Gannon captained the team to the All-Ireland title in 1928.
At club level, Gannon was a three-time county club championship medalist with the Round Towers team.