The Cardinal O'Donnell Cup is an annual senior league competition organised by Louth GAA for the Division 1 teams in Gaelic football in County Louth.
All 12 teams play each other once, with the top four traditionally qualifying for the semi-final stage.
[1] The winning team is presented with the Cardinal O'Donnell Cup, named after Patrick O'Donnell, who was Catholic Archbishop of Armagh and Primate of All Ireland from 1924 until his death in October 1927.
The trophy, which was donated to the County Board of Louth GAA by the Cardinal in 1926,[2] is a replica of the Ardagh Chalice.
‡ winners also won Louth Senior Football Championship that year § Title awarded to St Mary's after objection.