This is a round-up of the 2004 Leitrim Senior Football Championship. Annaduff claimed their first title in 76 years after a narrow win over another Southern side, Gortlettragh, in the final. They had dethroned St. Mary's of Carrick previously in the semi-final.
The Championship was contested by 20 teams, divided into four groups of five. The top two sides in each group advanced to the quarter-finals.