Football players

Player	Team	Age	Compare players
Ethan O'BrienMidfielder · IrelandMatch data available	Drogheda	25	+ Compare
Jake O'BrienCentre back · IrelandMatch data available	Everton	25	+ Compare
Lewis O'BrienAttacking midfielder · EnglandMatch data available	Wrexham	28	+ Compare
Noah O'BrienDefender · Ireland	Waterford	—	+ Compare
Joe O'Brien WhitmarshWinger · IrelandMatch data available	Northampton	21	+ Compare
Eoghan O'ConnellCentre back · IrelandMatch data available	Stockport County	31	+ Compare
Anthony O'ConnorCentre back · IrelandMatch data available	Galway	34	+ Compare
Lee O'ConnorDefender · IrelandMatch data available	Tranmere	26	+ Compare
Paudie O'ConnorDefender · IrelandMatch data available	Reading	29	+ Compare
O'Connor T.Centre back · IrelandMatch data available	Peterborough	—	+ Compare
Tomas O'ConnorMidfielder · ArgentinaMatch data available	Gimnasia Mendoza	22	+ Compare
Caolan O'DonnellMidfielder · Ireland	Derry City	18	+ Compare
Jamie O'DonnellForward · IrelandMatch data available	Sligo Rovers	16	+ Compare
Richard O'DonnellGoalkeeper · EnglandMatch data available	Derby	38	+ Compare
Stephen O'DonnellDefender · SeychellesMatch data available	Motherwell	34	+ Compare
Callum O'DowdaFullback · IrelandMatch data available	Ferencvaros	31	+ Compare
Kieran O'HaraGoalkeeper · IrelandMatch data available	Dundee FC	30	+ Compare
Mark O'HaraMidfielder · SeychellesMatch data available	Kilmarnock	30	+ Compare
Callum O'HareAttacking midfielder · EnglandMatch data available	Wrexham	28	+ Compare
Warren O'HoraCentre back · IrelandMatch data available	Leicester	27	+ Compare
Ryan O'KaneForward · IrelandMatch data available	Sligo Rovers	23	+ Compare
Corey O'KeeffeWingback · IrelandMatch data available	Bradford City	28	+ Compare
Max O'LearyGoalkeeper · IrelandMatch data available	West Brom	30	+ Compare
Mark O'MahonyForward · IrelandMatch data available	Burton	21	+ Compare

Profiles from published lineups. The current club is shown when confirmed; otherwise the latest observed club is labelled.