The 2020 O'Byrne Cup was a Gaelic football tournament played by county teams of Leinster GAA in December 2019 and January 2020.
[5][6] One team (Dublin) receives a bye to the semi-finals.
Two points are awarded for a win and one for a draw.
Two points are awarded for a win and one for a draw.
The three group winners plus the team given a bye (Dublin) compete in the semi-finals.