Surname List: Begins with O
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All surnames beginning with O, sorted alphabetically (total individuals):
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1. O (1) 2. O Brien (3) 3. O'Banion (1) 4. O'Bannon (3) 5. O'Briant (1) 6. O'Brien (15) 7. O'Bryan (2) 8. O'Bryant (1) 9. O'Byrne (1) 10. O'Carrol (1) 11. O'Cathan (2) 12. O'Connell (8) 13. O'Conner (1) 14. O'Connor (4) 15. O'Connors (1) 16. O'Daniel (3) 17. O'Day (4) 18. O'Dell (4) 19. O'Donley (2) 20. O'Donnell (4) 21. O'Donoghue (1) 22. O'Grady (1) 23. O'Guinn (1) 24. O'Hair (1) 25. O'Hanlon (1) 26. O'Hara (1) 27. O'Hearn (1) 28. O'Holeran Pritchard (1) 29. O'Kelly (2) 30. O'Malley (1) 31. O'Mara (3) 32. O'Neal (14) 33. O'Neil (2) 34. O'Neill (2) 35. O'Neille (1) 36. O'Rear (2) 37. O'Rourke (2) 38. O'Steen (1) 39. O'Sullivan (1) 40. Oakes (6) 41. Oakes Lawrence (1) 42. Oakley (17) 43. Oates (3) 44. Obama (1) |
45. Obenshain (1) 46. Oberholser (1) 47. Oberholtzer (3) 48. Oberlander (1) 49. Oberle (1) 50. Obermire (1) 51. Obley (1) 52. Obrien (1) 53. Ocheltree (1) 54. Ocher (1) 55. Ochsenbein (1) 56. Odaniel (1) 57. Oday (1) 58. Odell (3) 59. Oden (2) 60. Odey (1) 61. Odham (1) 62. Odle (1) 63. Odom (6) 64. Odor (1) 65. Odum (1) 66. Oehler (5) 67. Of Leinster (2) 68. of Maine (2) 69. of Mar (1) 70. Of Mercia (2) 71. Of Scotland (7) 72. Of Wessex (1) 73. Ogden (4) 74. Ogg (2) 75. Ogilvy (10) 76. Ogle (24) 77. Oglesby (5) 78. Ogletree (3) 79. Ohair (1) 80. Ohlson (1) 81. Ohlsson (1) 82. Ohman (1) 83. Ohmart (2) 84. Olafsdatter (4) 85. Olafsson (2) 86. Olarrea (1) 87. Oldaker (1) 88. Oldenburg (11) |
89. Oldfield (1) 90. Oldham (7) 91. Oldman (1) 92. Oldring (1) 93. Olds (3) 94. Olen (1) 95. Olfers (1) 96. Olham (1) 97. Olhausen (1) 98. Oliger (2) 99. Olinger (2) 100. Olio (1) 101. Oliphant (9) 102. Olive (2) 103. Oliver (33) 104. Olkowski (1) 105. Ollech (1) 106. Ollis (4) 107. Olmstead (6) 108. Olmsted (5) 109. Olofsdotter (1) 110. Olsen (3) 111. Olson (8) 112. Oman (2) 113. Omer (1) 114. Omohundro (2) 115. Oncale (1) 116. Oneal (2) 117. Oneil (1) 118. Onesi (1) 119. Oney (6) 120. Ong (1) 121. Only (1) 122. Onstott (2) 123. Opdyke (1) 124. Oram (1) 125. Orander (1) 126. Orange (4) 127. Orboda (1) 128. Orcutt (1) 129. Orem (2) 130. Orgain (1) 131. Orkney (2) 132. Orlean (1) |
133. Orman (2) 134. Ormand (2) 135. Orme (1) 136. Ormiston (1) 137. Ormond (1) 138. Ormondie (1) 139. Ormsby (5) 140. Ornduff (1) 141. Orne (2) 142. Orona (1) 143. Orr (387) 144. Orrick (2) 145. Orser (1) 146. Orsik (1) 147. Ortagus (1) 148. Orth (1) 149. Orto (1) 150. Orton (1) 151. Osborn (28) 152. Osborn White (1) 153. Osborne (57) 154. Osburn (26) 155. Osgood (2) 156. Oshman (1) 157. Oslac (1) 158. Osler (3) 159. Osman (1) 160. Osmer (1) 161. Osmon (2) 162. Osmun (1) 163. Ossory (4) 164. Ostaggi (1) 165. Osteen (9) 166. Ostenberg (2) 167. Oster (3) 168. Osterburg (1) 169. Osterloo (1) 170. Osterstock (1) 171. Ostrom (1) 172. Oswald (6) 173. Oswalt (19) 174. Otero Marrero (1) 175. Otis (1) 176. Otlipp (1) |
177. Otstot (1) 178. Ott (20) 179. Ottarsson (2) 180. Otto (5) 181. Otts (1) 182. Otwell (1) 183. Ouderkirk (1) 184. Oulton (1) 185. Ours (1) 186. Ousley (1) 187. Ousterbought (1) 188. Outland (4) 189. Outlaw (1) 190. Outten (3) 191. Overall (3) 192. Overbay (1) 193. Overby (3) 194. Overcash (27) 195. Overcast (1) 196. Overholt (1) 197. Overman (4) 198. Overstreet (19) 199. Overton (2) 200. Oves (1) 201. Ovitt (1) 202. Owen (38) 203. Owenby (3) 204. Owens (50) 205. Owins (1) 206. Ownes (2) 207. Oxby (1) 208. Oxer (1) 209. Oxford (5) 210. Oxley (6) 211. Oyer (1) 212. Oylear (2) 213. Oyler (3) 214. Oyoumie (1) 215. Oyster (1) 216. Ozenbaugh (1) 217. Ozias (2) 218. Ozment (5) |