Football players

Player	Team	Age	Compare players
O'Hara M.SeychellesMatch data available	Kilmarnock	30	+ Compare
O'Hare C.Attacking midfielder · EnglandMatch data available	Wrexham	28	+ Compare
Warren O'HoraCentre back · IrelandMatch data available	Leicester	27	+ Compare
O'Kane R.IrelandMatch data available	Sligo Rovers	23	+ Compare
O'Keeffe C.Wingback · IrelandMatch data available	Bradford City	—	+ Compare
O'Leary M.Goalkeeper · IrelandMatch data available	West Brom	30	+ Compare
Mark O'MahonyForward · IrelandMatch data available	Burton	21	+ Compare
O'Neill A.Midfielder · AustraliaMatch data available	New York City	28	+ Compare
O'Neill B.AustraliaMatch data available	Perth Glory	—	+ Compare
O'Neill C.Not recordedMatch data available	Arsenal	—	+ Compare
O'Neill G.IrelandMatch data available	Shamrock Rovers	31	+ Compare
O'Neill O.IrelandMatch data available	Leyton Orient	—	+ Compare
Luke O'NienCentre back · EnglandMatch data available	Sunderland	31	+ Compare
O'Regan L.IrelandMatch data available	Shamrock Rovers	21	+ Compare
Adam O'ReillyMidfielder · IrelandMatch data available	Derry City	25	+ Compare
O'Reilly N.EnglandMatch data available	Manchester City	21	+ Compare
O'Reilly T.EnglandMatch data available	Doncaster	—	+ Compare
Matt O'RileyMidfielder · DenmarkMatch data available	Brighton	25	+ Compare
O'Riordan C.Centre back · IrelandMatch data available	Barnsley	22	+ Compare
Dara O'SheaCentre back · IrelandMatch data available	Ipswich	27	+ Compare
O'Shea J.IrelandMatch data available	Perth Glory	38	+ Compare
O'Sullivan C.IrelandMatch data available	Shamrock Rovers	20	+ Compare
O'Sullivan JohnAttacking midfielder · IrelandMatch data available	Shamrock Rovers	20	+ Compare
O'Toole K.Fullback · IrelandMatch data available	New York City	27	+ Compare

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