The 2003 Kerry Senior Football Championship was the 103rd staging of the Kerry Senior Football Championship since its establishment by the Kerry County Board in 1889.
Kerins O'Rahilly's entered the championship as the defending champions, however, they were beaten by Mid Kerry in the quarter-finals.
The final replay was played on 26 October 2003 at Austin Stack Park in Tralee, between An Ghaeltacht and Laune Rangers. An Ghaeltacht won the match by 0-12 to 2-04 to claim their second championship title overall and a first title in two years.
Mid Kerry's Kieran Foley was the championship's top scorer with 1-22.
Promoted from the Kerry Intermediate Football Championship
Relegated to the Kerry Intermediate Football Championship