| Year: | 2011 |
| Type: | Under-21 |
| Dates: | 23 February – 1 May 2011 |
| Teams: | 32 |
| Team: | Galway |
| Titles: | 4th |
| Captain: | Colin Forde |
| Manager: | Alan Mulholland |
| Team2: | Cavan |
| Captain2: | Gearóid McKiernan |
| Manager2: | Terry Hyland |
| Munster: | Cork |
| Leinster: | Wexford |
| Ulster: | Cavan |
| Connacht: | Galway |
| Poty: | Tom Flynn |
| Previous: | 2010 |
| Next: | 2012 |
The 2011 All-Ireland Under-21 Football Championship was the 48th staging of the All-Ireland Under-21 Championship since its establishment by the Gaelic Athletic Association in 1964.
Dublin were the defending champions,[1] but were beaten by Meath in the Leinster quarter-final.[2]
Galway defeated Cavan by 2–16 to 1–9 in the final at Croke Park, for their fourth title and their first since 2005.[3]
Galway midfielder Tom Flynn was named Cadbury Hero of the Future.[4]