Surname List: Begins with O: GenMayle.com

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

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1. O DELL (1)
2. O' GOFFNEY (1)
3. O' NEIL (1)
4. O'BAGY (1)
5. O'BRAENAIN (1)
6. O'BRIAN (1)
7. O'BRIEN (4)
8. O'BYRNE (1)
9. O'CONNELL (1)
10. O'CONNOR (1)
11. O'HARA (2)
12. O'HERON (1)
13. O'HOAR (1)
14. O'KEEFE (3)
15. O'LEARY (3)
16. O'LOUGHLIN (1)
17. O'MALLEY (1)
18. O'NEAL (2)
19. O'NEIL (2)
20. O'TOOLE (10)
21. OAKDEN (6)
22. OAKES (2)
23. OAKEY (1)
24. OAKLEY (3)
25. OAKS (2)
26. OAR (5)
27. OATES (1)
28. OATHOUT (1)
29. OATTES (3)
30. OBER ISAR (1)
31. OBERENDER (3)
32. OBERLIN (3)
33. OBERLOTHRINGEN (1)
34. OBERRHEINGAU-THORGAU (1)
35. OBOTRITES (16)
36. OCAMB (1)
37. OCKANDER (2)
38. ODA (1)
39. ODELL (1)
40. ODGEN (1)
41. ODIN ( WODEN) (1)
42. ODINGSELS (1)

43. ODINSSON (3)
44. ODO (2)
45. ODOM (2)
46. ODORIZIE (1)
47. OEBERG (1)
48. OELAND (3)
49. OEN (1)
50. OENINGEN (2)
51. OEREN (1)
52. OFEIGSSON (1)
53. OFFUTT (1)
54. OGDEN (6)
55. OGLESBY (2)
56. OHIO (1)
57. OHL (11)
58. OHNINGEN (5)
59. OILLY (1)
60. OISELEUR (1)
61. OKESTON (3)
62. OLAFSDATTER (2)
63. OLAFSDATTER OF NORWAY (1)
64. OLAFSDOTTER (1)
65. OLAFSSON (11)
66. OLD SAXONY (1)
67. OLDAKER (6)
68. OLDFATHER (1)
69. OLDFIELD (6)
70. OLDHAM (15)
71. OLDROYD (24)
72. OLDS (2)
73. OLEND (1)
74. OLES (4)
75. OLESDATTER (1)
76. OLESEN (11)
77. OLESEN OR RAVNSHOLT (1)
78. OLESON (1)
79. OLGAARD (1)
80. OLIEKAN (4)
81. OLIFANT (1)
82. OLIVER (27)
83. OLIVER- TEPAKEYAH (1)
84. OLIVERIUS (1)

85. OLIVIER (1)
86. OLLERTON (5)
87. OLLIE (1)
88. OLLIE OR ALLEY (2)
89. OLLILA (1)
90. OLMEDA (1)
91. OLMICCIA (1)
92. OLMSTEAD (1)
93. OLMSTEED (1)
94. OLNEY (8)
95. OLOFSSON (6)
96. OLPIN (3)
97. OLSDATTER (1)
98. OLSEN (117)
99. OLSEN OR UNGERMANN (1)
100. OLSEN STOLWORTHY (1)
101. OLSON (54)
102. OLSON (OLSEN) (1)
103. OLSSON (9)
104. OLUFSEN (14)
105. OLVASON (2)
106. OLVERSSON (3)
107. OLZON (5)
108. OMAN (29)
109. ONINGEN (1)
110. ONION (12)
111. ONSTAD (1)
112. ONTRIVERS (1)
113. ONUND (1)
114. OOTHOUDT (9)
115. OPLAENDINGE (1)
116. OPP (1)
117. OR HARSNETT (2)
118. ORCHARD (2)
119. ORCUTT (1)
120. ORDGAR (1)
121. ORDRAD (1)
122. ORDWAY (4)
123. OREGUEN (1)
124. ORGILL (1)
125. ORI (1)
126. ORIEL (1)

127. ORIO (1)
128. ORION (1)
129. ORKINS (1)
130. ORKNEY (7)
131. ORLEANS (3)
132. ORMAN (4)
133. ORMANDY (10)
134. ORME (1)
135. ORMINSKI (1)
136. ORMISTON (3)
137. ORMSBY (22)
138. ORNDORFF (1)
139. ORNELAS (1)
140. ORONO (1)
141. ORQUIST (1)
142. ORR (4)
143. ORRALL (1)
144. ORREBY (2)
145. ORSEOLO (2)
146. ORTHWEIN (4)
147. ORTON (5)
148. ORVAL (4)
149. ORVICE (2)
150. ORVYCE (1)
151. ORWAY (3)
152. ORY (1)
153. OSBALDESTON (1)
154. OSBERT (2)
155. OSBORN (15)
156. OSBORNE (29)
157. OSBOURNE (1)
158. OSBURN (1)
159. OSGOOD (2)
160. OSLAND (4)
161. OSMUND (2)
162. OSORA (5)
163. OSSARY (1)
164. OSSORY (1)
165. OSTER (1)
166. OSTERMAN (1)
167. OSTERVANT (1)
168. OSTLER (8)

169. OSTLUND (2)
170. OSTMARK (2)
171. OSTRANDER (1)
172. OSTRUM (1)
173. OSWALD (2)
174. OSWALT (1)
175. OTEY (1)
176. OTHER (1)
177. OTIS (58)
178. OTTARSSON (1)
179. OTTEN (1)
180. OTTERMAN (1)
181. OTTERSTROM (1)
182. OTTESEN (1)
183. OTTO (2)
184. OTTOSEN (24)
185. OTTOSON (1)
186. OUELETTE (1)
187. OUILLY (2)
188. OULTON (1)
189. OURRI (1)
190. OVARD (1)
191. OVERBAUGH (1)
192. OVERHOLT (1)
193. OVERHULSER (3)
194. OVERMAN (35)
195. OVERSON (2)
196. OVERTON (1)
197. OVESEN (14)
198. OVESON (2)
199. OVIATT (2)
200. OWAIN (8)
201. OWAIN OR GWYNDD (1)
202. OWEN (13)
203. OWENS (22)
204. OXBORROW (9)
205. OXENBRIDGE (2)
206. OXFORD (5)
207. OXLEY (9)
208. OYRES (1)
209. OZMUN (15)