The 2018 Dublin Senior Football Championship was the 132nd edition of Dublin GAA's premier Gaelic football tournament for senior clubs in County Dublin, Ireland. 31 teams participate (16 in Senior 1 and 15 in Senior 2), with the winner of Senior 1 representing Dublin in the Leinster Senior Club Football Championship. The draw for the group stages of the championship were made on 21 March 2018. No team was promoted from the 2017 I.F.C. due to the rule that no reserve side who wins the I.F.C. (in this case Na Fianna 'B') can be promoted to the S.F.C.