Cognoms nord-irlandesos amb o
Cognoms nord-irlandesos amb o
- o'neill (8092)
- o'kane (5879)
- o'hagan (3280)
- orr (2437)
- o'connor (2028)
- o'donnell (2013)
- o'hare (2009)
- o'hara (1888)
- o'reilly (1819)
- o'brien (1685)
- owens (1412)
- o'hanlon (1318)
- oneill (1063)
- o'boyle (719)
- oliver (661)
- o'rourke (614)
- osborne (602)
- o'callaghan (579)
- o'sullivan (475)
- okane (467)
- o'connell (430)
- o'loughlin (412)
- ogle (304)
- o'toole (284)
- owen (254)
- ohare (245)
- ohara (241)
- ohagan (225)
- o'halloran (206)
- o'keefe (199)
- o'grady (187)
- o'gorman (184)
- oconnor (183)
- o'neil (180)
- obrien (175)
- odonnell (174)
- o'malley (168)
- ogilby (162)
- o'shea (160)
- oakes (155)
- o'donoghue (143)
- overend (137)
- o'dowd (132)
- o'leary (122)
- oreilly (108)
- o'carroll (104)
- ohanlon (99)
- odoherty (97)
- o'flaherty (91)
- officer (90)
- oneil (85)
- o'farrell (79)
- o'driscoll (73)
- ogilvie (70)
- orme (63)
- o'keeffe (56)
- o'donovan (56)
- o'higgins (53)
- otterson (53)
- oldham (51)
- o'regan (50)
- oliveira (50)
- oakley (50)
- orourke (48)
- oboyle (47)
- o (44)
- oliphant (42)
- o reilly (42)
- o'shaughnessy (41)
- ormsby (41)
- o'kelly (39)
- o'riordan (39)
- oconnell (37)
- o neill (37)
- ormerod (36)
- o'brian (35)
- oates (33)
- o'dwyer (32)
- o'flynn (32)
- ochiltree (32)
- ocallaghan (31)
- overton (30)
- o'rorke (29)
- osman (29)
- o'mahony (28)
- osbourne (28)
- o'dea (27)
- ogara (26)
- o donnell (26)
- osullivan (25)
- o'rielly (25)
- o connor (25)
- orman (24)
- oloughlin (24)
- o'conor (23)
- oldroyd (22)
- o'gormley (21)
- ovens (21)
- ohalloran (20)
- oladipupo (20)
