2011–12 All-Ireland Senior Club Football Championship
The 2011–12 All-Ireland Senior Club Football Championship was the 42nd staging of the All-Ireland Senior Club Football Championship since its establishment by the Gaelic Athletic Association in 1970–71. The championship began on 16 October 2011 and ended on 31 March 2012.
Crossmaglen Rangers entered the championship as the defending champion.
On 31 March 2012, Crossmaglen Rangers won the championship following a 2-19 to 1-7 defeat of Garrycastle in the All-Ireland final replay at Kingspan Breffni Park. It was their sixth championship title overall and their second title in succession.
Garrycastle's Dessie Dolan was the competition's top scorer with 0-29.
Semi-finals
Statistics
Top scorers
;Overall| Rank | Player | Club | Tally | Total | Matches | Average |
| 1 | Dessie Dolan | Garrycastle | 0-29 | 29 | 6 | 4.83 |
| 2 | Oisín McConville | Crossmaglen Rangers | 2-20 | 26 | 6 | 4.33 |
| 3 | Paul Geaney | UCC | 3-14 | 23 | 3 | 7.66 |
| 4 | Paddy Andrews | St Brigid's (Dublin) | 2-17 | 23 | 4 | 5.75 |
| 5 | Aaron Kernan | Crossmaglen Rangers | 1-18 | 21 | 6 | 3.50 |
| 6 | Colm Cooper | Dr Crokes | 2-14 | 20 | 4 | 5.00 |
| 7 | James Dolan | Garrycastle | 3-6 | 15 | 6 | 2.50 |
| 7 | Senan Kilbride | St Brigid's (Roscommon) | 0-15 | 15 | 4 | 3.75 |
| 7 | Conleith Gilligan | Ballinderry | 1-11 | 14 | 2 | 7.00 |
| 7 | Frankie Dolan | St Brigid's (Roscommon) | 0-14 | 14 | 4 | 3.50 |
;In a single game
| Rank | Player | Club | Tally | Total | Opposition |
| 1 | Paul Geaney | UCC | 2-5 | 11 | Moyle Rovers |
| 2 | David Shannon | Horeswood | 1-7 | 10 | St Brigid's (Dublin) |
| 3 | Cillian O'Connor | Ballintubber | 2-3 | 9 | Corofin |
| 3 | Colm Cooper | Dr Crokes | 2-3 | 9 | Ballinacourty |
| 3 | Daithí Casey | Dr Crokes | 2-3 | 9 | UCC |
| 4 | Conleith Gilligan | Ballinderry | 1-5 | 8 | Crossmaglen Rangers |
| 4 | Alan O'Donovan | Corofin | 0-8 | 8 | Ballintubber |
| 5 | James Dolan | Garrycastle | 2-1 | 7 | Longford Slashers |
| 5 | Stephen O'Brien | UCC | 2-1 | 7 | Moyle Rovers |
| 5 | Francis Hanratty | Crossmaglen Rangers | 2-1 | 7 | Garrycastle |
| 5 | Paddy Andrews | St Brigid's (Dublin) | 1-4 | 7 | Portlaoise |
| 5 | Gavin O'Grady | UCC | 1-4 | 7 | Monaleen |
| 5 | Séamus Quigley | Roslea Shamrocks | 1-4 | 7 | Burren |
| 5 | James Glancy | Glencar-Manorhamilton | 0-7 | 7 | Tourlestrane |
| 5 | Paddy Keenan | St Patrick's | 0-7 | 7 | Portlaoise |
| 5 | Paul Geaney | UCC | 0-7 | 7 | Monaleen |
| 5 | Eoin McCusker | Dromore St Dympna's | 0-7 | 7 | Ballinderry |
| 5 | Donal O'Hare | Burren | 0-7 | 7 | Crossmaglen Rangers |
| 5 | Dessie Dolan | Garrycastle | 0-7 | 7 | St Brigid's (Dublin) |
Miscellaneous
- Garrycastle won the Leinster Club SFC for the first time, becoming also the first club from Westmeath to win the provincial title.