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Surname List: Begins with O


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

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1. O' FLAHERTY (1)
2. O' NEILL (1)
3. O'BANNER (1)
4. O'BERTO (1)
5. O'BRIAN (1)
6. O'BRIEN (15)
7. O'BYRNE (1)
8. O'CARROLL (2)
9. O'CONNELL (2)
10. O'CONNOR (2)
11. O'DELL (1)
12. O'DONNAL (1)
13. O'DONNELL (26)
14. O'DWYER (2)
15. O'FALLON (2)
16. O'HANLON (1)
17. O'HARA (8)
18. O'HARE (2)
19. O'HARROW (1)
20. O'KEEFE (1)
21. O'KELLY (1)
22. O'LEARY (1)
23. O'MALLEY (1)
24. O'NEAL (17)
25. O'NEIL (4)
26. O'OLAF (1)
27. O'REILLY (2)
28. O'SHAW (1)
29. O'SULLIVAN (1)
30. O'TOOLE (9)
31. O.NAN (1)
32. OAKDEN (11)
33. OAKES (15)
34. OAKEY (1)
35. OAKEY (OAKINS) (1)
36. OAKLEY (21)
37. OAKMAN (1)
38. OAKS (1)
39. OATHOUT (1)
40. OATS (1)
41. OATTES (3)
42. OBANNION (1)
43. OBELENSKY (1)
44. OBENOUER (1)
45. OBER (1)
46. OBERGLOCK (1)
47. OBERHANSLEY (2)
48. OBERHANSLY (1)
49. OBERHOLTZER (1)
50. OBERPRILLER (3)
51. OBLAD (1)
52. OBOTRITES (2)
53. OBRAY (22)
54. OBRAY (AUBRAY, AUBREY, OBREY) (2)
55. OBRAY OR AUBREY (1)
56. OBRIEN (5)
57. OCHSLEIN (1)
58. OCKERMAN (1)
59. OCKINTON (1)
60. ODDSSON (1)
61. ODDY (1)
62. ODEKIRK (11)
   63. ODELL (4)
64. ODERKIRK (1)
65. ODINGSELLES (1)
66. ODINGSELLS (5)
67. ODINSELS (2)
68. ODLE (1)
69. OECHIEN (1)
70. OECHLINGEN (1)
71. OENINGEN (1)
72. OF ANCIENT SAXONY (1)
73. OF ANHALT (1)
74. OF ANJOU (2)
75. OF ATHLONE (1)
76. OF BOHEMIA (1)
77. OF BRANDENBURG (18)
78. OF BRUNSWICK (4)
79. OF BURGUNDY (1)
80. OF COLIGNY (2)
81. OF DENMARK (1)
82. OF DUNBAR (1)
83. OF GALLOWAY (1)
84. OF GAUNT (1)
85. OF HESSE (5)
86. OF HESSE DARMSTADT (1)
87. OF LORRAINE (1)
88. OF MONTPENSIER (2)
89. OF ORANGE (2)
90. OF PALATINE (3)
91. OF PROVENCE (3)
92. OF PRUSSIA (6)
93. OF REINALD (1)
94. OF SAXONY (1)
95. OF SCOTLAND (1)
96. OF TECH (1)
97. OF WURTTEMBERG (3)
98. OFARRELL (1)
99. OFFENHAUSER (1)
100. OFFER (1)
101. OFFING (3)
102. OFFLEY (1)
103. OFFMAN (2)
104. OFFREDI (1)
105. OF_HUNTINGDON (1)
106. OF_SALISBURY (1)
107. OGDEN (35)
108. OGELBEY (1)
109. OGILVIE (3)
110. OGILVY (5)
111. OGLE (14)
112. OGLES (3)
113. OGLESBY (3)
114. OGORCHOCK (19)
115. OGSTON (1)
116. OHAVER (3)
117. OHL (1)
118. OHLES (2)
119. OHLSON (1)
120. OILER (5)
121. OISY (1)
122. OKERLIND (4)
123. OKERMANN OR AKERMAN (1)
124. OKESON (3)
   125. OKLEASIK (2)
126. OLAF (1)
127. OLAFSSON (5)
128. OLASSON (11)
129. OLAUSSON (2)
130. OLAVESON (16)
131. OLBRANTZ (1)
132. OLCHAOIN (1)
133. OLCOTT (1)
134. OLD (5)
135. OLD (OLDS) (1)
136. OLDE (4)
137. OLDENBURG (22)
138. OLDFIELD (2)
139. OLDHAM (31)
140. OLDIS (5)
141. OLDRIDGE (4)
142. OLDROYD (17)
143. OLDS (20)
144. OLDS OR OULD (1)
145. OLEFIELD (1)
146. OLEG (2)
147. OLEJNICZAK (2)
148. OLENDORFF (1)
149. OLERICH (1)
150. OLES (1)
151. OLESDATTER (2)
152. OLESEN (18)
153. OLESEN (LATER CA (1)
154. OLESEN (OLSEN) (1)
155. OLESON OR CAROLI (1)
156. OLGA (4)
157. OLGER (1)
158. OLINGER (3)
159. OLIPHANT (4)
160. OLIVEAUX (8)
161. OLIVER (83)
162. OLIVERSON (2)
163. OLLEN (1)
164. OLLERTON (1)
165. OLLEY (1)
166. OLLUFSEN (1)
167. OLLYVER (2)
168. OLMSBY (1)
169. OLMSTEAD (120)
170. OLMSTEAD (MNU) (1)
171. OLMSTEAD (OLMSTED) (2)
172. OLMSTED (134)
173. OLMSTED (OLMSTEAD) (1)
174. OLNEY (5)
175. OLOFSSON (5)
176. OLPIN (10)
177. OLSAN (1)
178. OLSDATTER (1)
179. OLSEN (231)
180. OLSEN (OLSDATTER) (1)
181. OLSEN LUNDER (1)
182. OLSEN OLSDATTER (1)
183. OLSEN OR (KNUD (7)
184. OLSEN OR MADSEN (1)
185. OLSEN SVENDSEN (1)
186. OLSON (57)
   187. OLSSON (15)
188. OLUFSDATTER (1)
189. OLUFSEN (20)
190. OMAN (10)
191. OMETTO (1)
192. OMSTEAD (1)
193. ONDERDONK (1)
194. ONE OTHER (1)
195. ONION (1)
196. ONKEN (1)
197. ONLEY (1)
198. OOSTERHOUS (6)
199. OPENSHAW (1)
200. OPHEIKENS (4)
201. OPIE (1)
202. OR BEAFICE (1)
203. OR HARSNETT (1)
204. OR KNOPP (1)
205. ORAN (1)
206. ORANGE (2)
207. ORCHARD (1)
208. ORCUTT (28)
209. ORDE (2)
210. ORGILL (9)
211. ORIO (1)
212. ORKNEY (3)
213. ORLANDO (3)
214. ORLĂ©ANS (1)
215. ORLEANS (5)
216. ORMISTON (1)
217. ORMSBEE (2)
218. ORMSBEY (2)
219. ORMSBY (2)
220. ORNE (5)
221. ORNER (3)
222. ORR (30)
223. ORSE (1)
224. ORTEGA (1)
225. ORTEN (2)
226. ORTENBURG (1)
227. ORTH (1)
228. ORTON (67)
229. ORVAL (1)
230. ORVIS (10)
231. OR_FITZ_HENRY (1)
232. OSBERN (1)
233. OSBORN (86)
234. OSBORNE (55)
235. OSBORNE(OGBORNE) (1)
236. OSBORN_(COUSIN) (1)
237. OSBOURN (1)
238. OSBOURNE (3)
239. OSGOOD (28)
240. OSGOOD_[TWIN] (1)
241. OSLAC (1)
242. OSLAND (2)
243. OSSMEN (1)
244. OSTER (11)
245. OSTERBY (1)
246. OSTERHOLM (3)
247. OSTERHOUT (1)
248. OSTIN (1)
   249. OSTLER (40)
250. OSTMARK (1)
251. OSTRENGA (1)
252. OSTROUT (1)
253. OSULPHUS (1)
254. OSWEILER (2)
255. OSWULF (1)
256. OTELEY (1)
257. OTES_(OTIS) (1)
258. OTIS (69)
259. OTSEN (3)
260. OTT (6)
261. OTTARSSON (1)
262. OTTENSEN (1)
263. OTTER (1)
264. OTTERMILLER (2)
265. OTTESEN (3)
266. OTTESEN (OR OTHESEN) (1)
267. OTTESON (1)
268. OTTINGER (1)
269. OTTLEY (2)
270. OTTO (7)
271. OTTON (1)
272. OTTOSEN (1)
273. OUCHTERLONEY (1)
274. OUDSTEIN (8)
275. OUGH (2)
276. OUINVILLE (1)
277. OULD (7)
278. OULD (OLDE) (1)
279. OUTCALT (1)
280. OUTZEN (16)
281. OUVRARD (62)
282. OUZOUNIAN (3)
283. OVARD (1)
284. OVCHINNIKOV (1)
285. OVERHOLT OR OVERSTREET (1)
286. OVERLADE (2)
287. OVERLOCK (1)
288. OVERLY (3)
289. OVEROCKER (1)
290. OVERSON (9)
291. OVERSTREET (1)
292. OVERTON (5)
293. OVESEN (3)
294. OVESON (2)
295. OVIATT (22)
296. OWAIN (21)
297. OWEN (80)
298. OWENGS (1)
299. OWENS (76)
300. OWEN_(S) (1)
301. OWSELEY (1)
302. OWSLEY (5)
303. OXBORROW (18)
304. OXENFORTH (1)
305. OXLEY (1)
306. OXNAM (1)
307. OXTOBY (40)
308. OYLER (22)