Surname List: Begins with O


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

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1. O'Brian (1)
2. O'Brien (4)
3. O'Connel (1)
4. O'CONNELL (5)
5. O'Conner (1)
6. O'Dell (7)
7. O'DONAVAN (2)
8. O'Donnell (3)
9. O'Hair (2)
10. O'KELLY (1)
11. O'Leary (2)
12. O'Meara (1)
13. O'Neal (1)
14. O'Neil (1)
15. O'Reagan (2)
16. O'Tolle (2)
17. Oakes (1)
18. Oakeson (13)
19. Obama (2)
20. Obenchain (1)
21. Ober (21)
22. Oberg (1)
23. Oberlander (1)
24. Oberle (32)
25. Oberly (1)
26. Obert (1)
27. Obrestad (1)
28. Obrien (4)
29. Ochoa (1)
30. Ochs (1)
31. Ochsner (3)
32. Ochssner (1)
33. Odom (4)
34. of Acre (1)
35. of Angoulême (1)
36. of Anjou (1)
37. of Antwerp (1)
38. of Beaufort (1)
39. of Bohemia (3)
   40. of Brotherton Plantagenet (3)
41. of Carinthia (1)
42. of Chilham (2)
43. of Derby Plantagenet (1)
44. of Eltham Plantagenet (1)
45. of England (35)
46. of Fondi (1)
47. of France (2)
48. Of Guelders (4)
49. of Hainault (2)
50. of Hatfield (1)
51. of Kent (1)
52. of Lancaster (6)
53. of Lancaster Plantagenet (1)
54. of Langley (1)
55. Of Leinster (2)
56. of Louvain (1)
57. of Normandy (1)
58. of Portugal (1)
59. of Scotland (3)
60. of Strathbogie (6)
61. of Swabia (1)
62. of The Tower Plantagenet (1)
63. of Vermandois (1)
64. of Windsor (1)
65. of Woodstock (6)
66. of Woodstock Plantagenet (1)
67. of York (2)
68. Ofredal (2)
69. Oftedal (3)
70. Oftstuen (1)
71. Ogden (5)
72. Ogier (3)
73. Ogle (3)
74. Oglesby (1)
75. Ogletree (2)
76. Ogren (2)
77. Ohl (1)
78. Ohmann (1)
   79. Oilfield (1)
80. Okey (1)
81. Okland (1)
82. Oksendal (57)
83. OKSENDAL or LARSON (1)
84. OKSENDAL or LINLAND (1)
85. Olafsdatter (1)
86. Olafsdottir (1)
87. Olafsson (1)
88. Olavsdatter (1)
89. Oldbury (2)
90. Oldenburg (3)
91. Oldham (8)
92. Oldsdatter (1)
93. Oldsdotter (1)
94. Olesdatter (1)
95. Olesen (2)
96. Olesen Hynie (2)
97. Oleson Staupe (1)
98. Olin (1)
99. Oliphant (2)
100. Oliver (10)
101. Olivier (14)
102. Ollsen (2)
103. Olmstead (2)
104. Olnes (9)
105. OLNES or AARVOLL (6)
106. Olney (1)
107. Olofsdotter (1)
108. Olsdatter (7)
109. Olsdatter Holla Namløs Store (1)
110. Olsdatter Jøntvet Holla Tveit (1)
111. Olsdatter Rafnes (1)
112. Olsdatter Tveit Bo (1)
113. Olsdotter (7)
114. Olsdtr (1)
115. Olsen (12)
116. Olsen Eiestrand (1)
117. Olsen Holla Bo (1)
   118. Olson (94)
119. Olsson (10)
120. Olstead (1)
121. Olufsdotter (4)
122. Olufsen (1)
123. Olufsson (4)
124. Omdal (1)
125. Omholt (2)
126. Omland (6)
127. Omtvedt (7)
128. Omundsdatter (1)
129. Omundson (21)
130. Opheim (1)
131. Opoien (3)
132. Orbison (1)
133. Orcutt (1)
134. Ordgarsson (1)
135. Ormelseng (1)
136. Orne (2)
137. Orr (6)
138. Orsbrook (2)
139. Orsini (1)
140. Ort (1)
141. Ortiz (1)
142. Ortwein (1)
143. Orvice (1)
144. Orvold (12)
145. Orwoll (105)
146. ORWOLL [ARVOLL] (1)
147. Osbaldeston (2)
148. Osbern (1)
149. Osborn (9)
150. Osborne (103)
151. Osbourne (2)
152. Oscar (18)
153. Oschsner (1)
154. Osgood (1)
155. Osher (1)
156. Oslien (2)
   157. Oslington (1)
158. Osterberg (2)
159. Ostrom (1)
160. Osusdatter (1)
161. Otsen (1)
162. Otterberg (1)
163. Otterson (1)
164. Otteson (8)
165. Ottey (2)
166. Otto (2)
167. Ouellet (23)
168. Ouellete (1)
169. Oulrey (1)
170. Oulton (3)
171. Ouvrard (1)
172. Ovedal (3)
173. Overall (3)
174. Overbeck (2)
175. Overbek (1)
176. Overby (1)
177. Overholser (4)
178. Overman (1)
179. Overpeck (4)
180. Overstreet (2)
181. Overton (10)
182. Ovesen (2)
183. Oviatt (1)
184. Ovre Kvinlog (16)
185. Ovre Stakkeland (1)
186. Owain (3)
187. Owen (14)
188. Owens (2)
189. Owings (4)
190. Owsley (2)
191. Ozanne (2)
192. Ozbrooks (1)