The 2016 O'Byrne Cup was a Gaelic football competition played by the teams of Leinster GAA.

The competition differs from the Leinster Senior Football Championship as it also features further education colleges and the winning team does not progress to another tournament at All-Ireland level.

16 teams compete: 11 county teams (all those of Leinster except Kilkenny) and 5 third-level teams: DIT, UCD, IT Carlow, DCU and Maynooth University.

Each team plays the other teams in its group once, earning 2 points for a win and 1 for a draw.

The four group winners progress to the semi-finals.