The 2009–10 All-Ireland Senior Club Football Championship was the 40th staging of the All-Ireland Senior Club Football Championship since its establishment by the Gaelic Athletic Association in 1970-71.

The championship began on 18 October 2009 and ended on 17 March 2010.

Kilmacud Crokes were the defending champions; however, they failed to qualify after being beaten by Ballyboden St Enda's in a semi-final replay of the 2009 Dublin County Championship.

[1] On 17 March 2010, St Gall's won the championship following a 0-13 to 1-05 defeat of Kilmurry-Ibrickane in the All-Ireland final at Croke Park.

C. J. McGourty of the St Gall's club was the championship's top scorer with 2-28.