The 2012 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.
[1] The first round winners Meath, DCU, Longford, Kildare, Offaly, Dublin and UCD went on to qualify for the quarter-finals of the tournament.
[2] The final of the O'Byrne Cup was originally supposed to take place on 29 January 2012.
However, due to the venue (St Conleth's Park) being waterlogged, it was postponed.