The draw for the fourth round or the last 16 took place on 15 August. The draw was from the second-round winners - St Brigid's, UCD, Ballyboden St Enda's, St Judes, Raheny, St Oliver Plunkett's/Eoghan Ruadh, Round Towers Clondalkin and Ballymun Kickhams and the third-round winners - Kilmacud Crokes, Ballinteer St John's, St Vincent's, Na Fianna, O'Toole's, Erin's Isle, Lucan Sarsfields and St Mary's. The winners of the second round were drawn against the third-round winners; they were separated by two distinct lots meaning the second-round winners were kept apart from third-round winners in the fourth-round draw. The draw revealed a potential tie of the round between champions Kilmacud Crokes and Ballyboden St Endas.