Surname List: Begins with O: BARTON One Name Study

Barton Historical & Genealogical Society
Barton Database

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

1. O 'Bryan (1)
2. O'Brian (2)
3. O'Brien (11)
4. O'Bryant (2)
5. O'Coin (1)
6. O'Connell (5)
7. O'Conner (3)
8. O'Conner / O'Connor (1)
9. O'Connor (1)
10. O'Dea (2)
11. O'Dell (4)
12. O'Donnell (5)
13. O'Donovan (1)
14. O'Farrell (1)
15. O'Gar (1)
16. O'Grady (3)
17. O'Griffin (1)
18. O'Hara (1)
19. O'Hearn (1)
20. O'Kane (1)
21. O'Keefe (3)
22. O'Kelley (1)
23. O'Laughin (1)
24. O'Leary (3)
25. O'Mahoney (1)
26. O'Malley (1)
27. O'Mara (1)
28. O'Neal (3)
29. O'Neil (2)
30. O'Neill (3)
31. O'Quinn (4)
32. O'Rear (1)
33. O'Reilly (1)
34. O'Rielly (1)
35. O'Riley (1)
36. O'Rourke (2)
37. O'Shaughnessy (3)
38. O'Sullivan (1)
39. Oakes (8)
40. Oakley (1)
41. Oaks (2)
42. Oates (2)
43. Oats (2)
44. Oban (1)

45. Obannon (1)
46. Obenhoff (1)
47. Oberbacher (1)
48. Oberfoell (1)
49. Oberlander (1)
50. Oberley (1)
51. Oberlin (1)
52. Oberthier (1)
53. Ocampo Rosete (1)
54. Ochs (1)
55. Oconner / O'Conner (1)
56. Oconor later Barton (1)
57. Oddy (3)
58. Odegard (1)
59. Odell (2)
60. Odem (1)
61. Oden (1)
62. Odle (4)
63. Odom (11)
64. Oelke (1)
65. Oerther (1)
66. Oetzel (1)
67. Offer (1)
68. Offermann (1)
69. Offord (2)
70. Offutt (1)
71. Ogborn (1)
72. Ogden (2)
73. Ogilvie (1)
74. Ogle (1)
75. Ogles (1)
76. Oglesby (2)
77. Ohl (3)
78. Ohlendorf (1)
79. Ohm (1)
80. Ohneck (1)
81. Oiler (1)
82. Okada (1)
83. Oke (1)
84. Okenfus (1)
85. Okerlund (1)
86. Okes (1)
87. Okeson (1)
88. Okkorowska (1)

89. Okland / Oakland (1)
90. Olcott (1)
91. Oldfield (2)
92. Oldham (4)
93. Olds (3)
94. Olekas (2)
95. Oler (6)
96. Oles (1)
97. Olguin (1)
98. Olin (2)
99. Olinde (1)
100. Oliphant (2)
101. Oliphint (1)
102. Olivarez (1)
103. Oliveira (2)
104. Oliver (30)
105. Oliveres (1)
106. Oller (3)
107. Ollivier (2)
108. Olmstead (2)
109. Olmstead / Olmsted (1)
110. Olmsted (1)
111. Olney (1)
112. Olsdotter (1)
113. Olsen (5)
114. Olson (13)
115. Olszewska / Olschewshis (1)
116. Olszewski (1)
117. Omholt (1)
118. Omohundro (3)
119. Onderdonck (1)
120. Onderdonk (1)
121. Oneal / O'Neal (1)
122. Oneil (1)
123. Onirk (2)
124. Onsgard (1)
125. Onstad (1)
126. Onstott (1)
127. Oosterveen (1)
128. Opalenik (1)
129. Opatz (1)
130. Opel (1)
131. Oppenheim (3)
132. Opris (1)

133. Oramas (1)
134. Orbough (1)
135. Orchard (3)
136. Orcutt (3)
137. Orelero / Ortelers (1)
138. Orem (1)
139. Oremus (1)
140. Organ (2)
141. Orick (1)
142. Origliasso (1)
143. Orisek (1)
144. Ormerod (1)
145. Ormesher (1)
146. Orndorff (1)
147. Orne (1)
148. Oronoz (1)
149. Orork (1)
150. Orr (14)
151. Orren (1)
152. Orrill (1)
153. Orris (1)
154. Ortega (1)
155. Ortgiesen (1)
156. Orth (2)
157. Ortland (1)
158. Ortner (1)
159. Orton (1)
160. Ortwein (1)
161. Orullian / Aposhian (1)
162. Osbon (1)
163. Osborn (12)
164. Osborne (14)
165. Osbourne (2)
166. Osbun (1)
167. Osburn (5)
168. Osburne (1)
169. Oscroft (1)
170. Osgood (3)
171. OShia (1)
172. Oshman (1)
173. Osick (1)
174. Osland (1)
175. Osner (1)
176. Osorioz Bravo (1)

177. Ostara (1)
178. Ostergren (1)
179. Ostler (1)
180. Ostrancer (1)
181. Ostrander (4)
182. Ostrum (1)
183. Osuna (1)
184. Oswald (3)
185. Oswalt (1)
186. Oswin (1)
187. Otey (2)
188. Othic (1)
189. Ott (6)
190. Ottelin (1)
191. Otto (1)
192. Ouiguis (1)
193. Ousse (1)
194. Outhouse (3)
195. Outlaw (1)
196. Ouzts (1)
197. Ovaltae (1)
198. Overacker (1)
199. Overall (1)
200. Overfelt (2)
201. Overfield (2)
202. Overhalser (1)
203. Overhalt (1)
204. Overholt (1)
205. Overland (2)
206. Overly / Overley (1)
207. Overmeyer (1)
208. Overstreet (1)
209. Overton (7)
210. Ovren (1)
211. Owen (15)
212. Owen / Owens (1)
213. Owens (25)
214. Owings (3)
215. Ownbey (1)
216. Ownes (1)
217. Owsley (5)
218. Oxendine (10)
219. Ozene (1)