Surname List: Begins with O: Our Family History

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All surnames beginning with O, sorted alphabetically (total individuals):

1. O Neil (1)
2. O' Brien (1)
3. O'Banion (11)
4. O'Brien (17)
5. O'Connell (1)
6. O'Conner (2)
7. O'Connor (16)
8. O'Dell (7)
9. O'Donnal (2)
10. O'Donnell (12)
11. O'Driscoll (4)
12. O'Flannery (1)
13. O'Hare (1)
14. O'Killey (1)
15. O'Kussick (1)
16. O'Malley (1)
17. O'Meara (1)
18. O'Moore (1)
19. O'Neal (7)
20. O'Neil (29)
21. O'Neill (7)
22. O'Niel (1)
23. O'Sullivan (9)
24. O'Toole (2)
25. O'Warn (1)
26. Oaborn (1)
27. Oakden (1)
28. Oakes (1)
29. Oakeson (4)
30. Oakley (13)
31. Oakney (1)
32. Oaks (7)
33. Oats (1)
34. Obama (2)
35. Ober (2)
36. Oberdorf (1)
37. Oberg (1)
38. Oberholtzer (1)
39. Oberlander (2)
40. Obizzo (1)
41. Oborn (3)
42. Obotrites (1)
43. Obray (1)
44. Ocheltree (5)
45. Ockerman (1)
46. Ockey (1)
47. Oconner (1)
48. Odegaard (2)
49. Odegard (1)
50. Odell (9)

51. Odemard (1)
52. Odendahl (3)
53. Odette (1)
54. Odinsson (1)
55. Odle (4)
56. Oehmig (1)
57. Oelkers (1)
58. Oelsner (1)
59. Oesterling (8)
60. Oetzel (1)
61. Officer (1)
62. Offredi (1)
63. Ofgren (1)
64. Ogborne (2)
65. Ogden (29)
66. Ogilive (1)
67. Ogilvie (2)
68. Ogilvy (3)
69. Ogiz (1)
70. Oglesby (3)
71. Oglethorpe (1)
72. Ogren (2)
73. Ohland (2)
74. Ohman (1)
75. Oke (1)
76. Okerlund (1)
77. Okey (3)
78. Okoorian (1)
79. Olafrsdatter (1)
80. Olafsdatter (4)
81. Olafsdotter (3)
82. Olafsdottir (2)
83. Olafson (1)
84. Olafsson (6)
85. Olasdotter (5)
86. Olasson (4)
87. Olavsdatter (8)
88. Olavsen (2)
89. Olavsson (1)
90. Olcháin (1)
91. Olcott (1)
92. Old (1)
93. Oldaker (1)
94. Olden (1)
95. Oldenburg (25)
96. Older (1)
97. Oldfield (33)
98. Oldham (26)
99. Oldroyd (2)
100. Olds (12)

101. Oler (2)
102. Oles (9)
103. Olesdatter (4)
104. Olesen (2)
105. Olin (52)
106. Olinger (5)
107. Oliphant (11)
108. Olive (2)
109. Oliver (55)
110. Oliverson (6)
111. Olivier (71)
112. Olka (6)
113. Olkowski (1)
114. Ollchrothach (1)
115. Ollier (1)
116. Olliver (8)
117. Ollom (1)
118. Olmstead (46)
119. Olmsted (1)
120. Olmucaid (1)
121. Olnay (1)
122. Olney (327)
123. Olofsdotter (12)
124. Olofsdottir (2)
125. Olofson (1)
126. Olofsson (14)
127. Olpin (3)
128. Olrik (1)
129. Olsdatter (42)
130. Olsdotter (22)
131. Olsdottir (4)
132. Olsen (233)
133. Olsen Reich (2)
134. Olson (95)
135. Olsson (29)
136. Olufsen (2)
137. Olufsson (3)
138. Olyff (1)
139. Oman (22)
140. Omar (1)
141. Onan (5)
142. Ondler (1)
143. Ondovcik (5)
144. Ondovick (1)
145. Oneil (3)
146. Oney (1)
147. Ongley (1)
148. Op den Graeff (1)
149. Opdahl (1)
150. Opie (8)

151. Oppenheim (1)
152. Oram (1)
153. Orban (2)
154. Orchard (3)
155. Orcutt (4)
156. Ord (2)
157. Ordway (1)
158. Oreno (1)
159. Orewiler (1)
160. Orfitus (1)
161. Orgill (9)
162. Orkney (2)
163. Orlandos (1)
164. Orleans (8)
165. Ormand (1)
166. Orme (1)
167. Ormiston (1)
168. Ormond (9)
169. Ormsbee (13)
170. Ormsby (4)
171. Orphey (1)
172. Orr (11)
173. Orris (16)
174. Orrison (1)
175. Orry (2)
176. Orsborn (1)
177. Orsel (2)
178. Orth (5)
179. Ortiz (1)
180. Orton (31)
181. Orvice (1)
182. Orwin (8)
183. Os (1)
184. Osborn (29)
185. Osborne (26)
186. Osbourn (1)
187. Osburn (15)
188. Oscarson (1)
189. Oscroft (1)
190. Oseth (1)
191. Osgood (4)
192. Osguthorpe (1)
193. Oslund (1)
194. Osmun (1)
195. Osswald (1)
196. Ostensen (1)
197. Osterhout (10)
198. Osterlin (2)
199. Ostermann (8)
200. Ostler (127)

201. Ostrander (12)
202. Ostrom (14)
203. Ostrowski (1)
204. Oswald (15)
205. Oteley (8)
206. Otis (26)
207. Otley (1)
208. Ott (1)
209. Ottarrsson (1)
210. Ottati (1)
211. Otterburn (1)
212. Otterburne (5)
213. Ottersdotter (3)
214. Ottersen (7)
215. Otterstad (1)
216. Otterstrom (13)
217. Ottesdotter (3)
218. Ottesen (1)
219. Ottinger (15)
220. Ottley (23)
221. Ottman (7)
222. Otto (9)
223. Ottosen Nors (1)
224. Outcalt (1)
225. Outzen (14)
226. Ouzexre (1)
227. Ovaitt (1)
228. Ovard (1)
229. Overacker (1)
230. Overby (1)
231. Overgard (1)
232. Overlade (1)
233. Overman (1)
234. Overmann (1)
235. Overmeyer (1)
236. Overson (6)
237. Overton (32)
238. Oveson (13)
239. Oviatt (3)
240. Owen (39)
241. Owens (26)
242. Ower (6)
243. Owings (1)
244. Owres (1)
245. Oxborrow (13)
246. Oxenbridge (1)
247. Oxley (1)
248. Oxman (1)