The 2010 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. Last year's winners of the O'Byrne Cup were Louth. The O'Byrne Cup was due to begin on 6 January 2010; however, due to Arctic conditions in the Leinster region of Ireland, the Leinster council decided to postpone all games until 16 January.