2008–09 All-Ireland Senior Club Football Championship
| Dates | 19 October 2008 – 17 March 2009 | ||
|---|---|---|---|
| Teams | 30 | ||
| Sponsor | Allied Irish Bank | ||
| Champions | Kilmacud Crokes (2nd title) Johnny Magee (captain) Paddy Carr (manager) | ||
| Runners-up | Crossmaglen Rangers John Donaldson (captain) Donal Murtagh (manager) | ||
| Tournament statistics | |||
| Matches played | 33 | ||
| Top scorer(s) | Mark Vaughan (2–32) | ||
| |||
The 2008–09 All-Ireland Senior Club Football Championship was the 39th staging of the All-Ireland Senior Club Football Championship since its establishment by the Gaelic Athletic Association in 1970–71. The competition began on 19 October 2008 and concluded on 17 March 2009.
The defending champion was St Vincent's; however, the club lost to Kilmacud Crokes in the 2008 Dublin SFC semi-final replay. No representative clubs from Waterford or Wexford participated because of delays in the SFCs of those counties being completed.
Kilmacud Crokes defeated Crossmaglen Rangers by 1–9 to 0–7 in the final at Croke Park on 17 March 2009 to win the competition. It was the club's second title, and a first since 1995.
Mark Vaughan of Kilmacud was the competition's top scorer, finishing with 2–32.