100% Free Genealogy Research! Just Enter a Name and Search Now!

Genealogy Directory: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

Most Common Surnames Starting With O


Owens (721,236) Olson (700,625) Ortiz (647,995)
Oliver (486,763) Obrien (362,175) Owen (323,875)
Ortega (245,100) Olsen (232,489) Osborne (228,564)
Ones (210,992) Orr (197,549) Oconnor (196,027)
Osborn (178,417) O'Brien (177,501) Oneal (145,602)
Ochoa (140,700) Ott (128,141) Oneill (123,138)
Odell (116,703) Oneil (116,540) Odonnell (115,345)
Orozco (105,980) Odom (102,930) Oconnell (97,970)
Otto (96,532) O'Connor (93,603) Ong (89,532)
Ogden (83,287) Overton (68,769) Oakley (67,385)
Orris (62,825) Oakes (58,153) O'Donnell (57,186)
Oleson (56,042) Oleary (55,895) Ogle (55,687)
Ohara (54,802) Organ (54,468) Orton (53,841)
O'Neil (53,600) O'Neill (52,517) O'Connell (52,325)
Oswald (51,123) Oldham (50,823) Osorio (48,390)
Otero (45,907) Olvera (43,345) Okeefe (42,925)
Overstreet (42,418) Orres (42,026) Obinson (41,859)
Orales (41,287) Oliveira (40,206) Orellana (39,886)
Olivares (39,737) Oster (39,550) Orourke (39,087)
Ostrander (38,911) Omalley (38,208) Otis (37,785)
Oglesby (37,783) Ojeda (36,639) Ocampo (35,719)
Oates (35,589) Oconner (35,345) Olmstead (35,323)
Ornelas (35,009) Osgood (34,331) Orlando (34,170)
O'Neal (33,848) Olivas (33,615) Oliva (33,575)
Osburn (33,365) Ouellette (32,569) Omez (32,363)
Olds (30,276) Oaks (29,494) O'Leary (29,015)
Oss (28,785) Oden (27,828) Ordonez (26,965)
Orth (26,879) O'Hara (25,191) Ontiveros (23,842)
Osullivan (23,691) Outlaw (23,630) Oreilly (23,468)
Otoole (22,824) Ortez (22,609) Oberts (22,522)
O'Keefe (22,268) O'Rourke (21,327) Ogers (21,315)
Oshea (21,038) Ollins (20,849) Oung (20,298)
Olive (20,223) Oman (19,911) Obrian (19,896)
Ocasio (19,883) Orman (19,803) Olguin (19,792)
Oberg (19,529) O'Malley (19,301) Onzales (19,039)
Overby (18,920) Olin (18,784) Orosco (18,775)
Overman (18,770) Ogan (18,713) Ochs (18,609)
Olinger (18,419) Ord (18,294) Orcutt (18,213)
Olivera (18,007) Olivarez (17,419) Oliphant (17,148)
Owings (16,733) Orona (16,623) Olivo (16,328)
Ohnson (16,265) Ostrowski (16,117) Ober (16,005)
O'Smith (15,555) Oswalt (15,521) Osman (15,250)
Olmsted (15,121) Ogrady (14,913) O'Conner (14,720)
Obryan (14,662) Oxley (14,055) O'Dell (13,929)
Odum (13,862) Otten (13,851) Oxford (13,725)
Olney (13,393) O'Toole (13,390) Ormsby (13,352)
Osteen (13,029) Olmos (12,897) Olszewski (12,839)
Oyer (12,579) Oxendine (12,523) Oleman (12,515)
Oney (12,456) Otte (12,392) O'Johnson (12,319)
O'Sullivan (12,281) Owell (12,208) Odle (12,143)
Orrison (12,038) Orta (11,996) Osuna (11,966)
Ohare (11,814) Oto (11,761) O'Reilly (11,631)
Olivier (11,506) Ogletree (11,400) Ordway (11,389)
Ostrom (11,316) Ousley (11,245) Onzalez (10,945)
Olden (10,934) Odriguez (10,923) Oats (10,859)
Omero (10,690) Own (10,629) Ordon (10,597)
Oldfield (10,476) Ordan (10,371) Omara (10,369)
Ogg (10,267) Oviedo (10,187) Ontreras (10,129)
O'Williams (9,961) O'Shea (9,948) Osterman (9,933)

Public Member Trees


Owens (1,820) Oliver (1,147) Olson (999)
Osborne (730) Ortiz (723) Owen (672)
O'Brien (556) Olsen (473) Orr (472)
Odom (434) O'Connor (399) Osborn (335)
Ortega (324) O'Neill (297) Ott (293)
O'Donnell (244) O'Neal (224) Ogden (209)
Otto (202) Ogle (187) Ochoa (185)
Oakley (184) O'Dell (180) O'Connell (175)
Odell (172) Oldham (168) Oakes (156)
Overstreet (154) Oswald (148) O'Neil (146)
Oneal (144) Overton (138) Obrien (137)
Osgood (114) O'Leary (103) Oglesby (100)
Otis (98) Orozco (97) Osburn (97)
Olds (95) Olmstead (93) O'Sullivan (89)
Oates (87) Oaks (84) O'Rourke (84)