Surname List: Begins with O


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

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1. O'Bara (2)
2. O'Bomsawin (4)
3. O'Boole (1)
4. O'Boyle (8)
5. O'Brennan (1)
6. O'Brian (39)
7. O'Briand (2)
8. O'Brien (154)
9. O'Brien Farm Industries Ltd (1)
10. O'Byrne (8)
11. O'Byrnes (2)
12. O'Callaghan (12)
13. O'Carroll (2)
14. O'Connel (2)
15. O'Connell (33)
16. O'Connor (169)
17. O'Connors (1)
18. O'Day (1)
19. O'Dea (2)
20. O'Dell (2)
21. O'Dia (1)
22. O'Dogherty (2)
23. O'Doherty (2)
24. O'Donald (1)
25. O'Donell (14)
26. O'Donnell (26)
27. O'Donoghue (2)
28. O'Donohoe (4)
29. O'Donohue (3)
30. O'Donovan (2)
31. O'Dowd (1)
32. O'Fahey (1)
33. O'Farrell (15)
34. O'Flaherty (3)
35. O'Gara (3)
36. O'Gorman (9)
37. O'Grady (26)
38. O'Gready (3)
   39. O'Hagan (2)
40. O'Halloran (1)
41. O'Hanlon (1)
42. O'Hara (12)
43. O'Hare (2)
44. O'Heare (3)
45. O'Hearn (3)
46. O'Holloran (2)
47. O'Jaick (1)
48. O'Keefe (30)
49. O'Kendra (2)
50. O'Laughsan (1)
51. O'Leary (32)
52. O'Lery (2)
53. O'Mall (2)
54. O'Mallay (2)
55. O'Malley (9)
56. O'Mally (3)
57. O'Mara (2)
58. O'Mealy (2)
59. O'Meara (59)
60. O'Mears (2)
61. O'Neil (81)
62. O'Neill (51)
63. O'Ray (2)
64. O'Reagan (1)
65. O'Regan (3)
66. O'Reilly (44)
67. O'Rielly (2)
68. O'Rourke (17)
69. O'Ryan (1)
70. O'Shaughnessey (2)
71. O'Shaughnessy (5)
72. O'Shea (8)
73. O'Sullivan (7)
74. O'Toole (21)
75. O'Tose (1)
76. O'Vorman (2)
   77. O. E. Larivière Furniture Store (1)
78. Oakes (2)
79. Oakley (2)
80. Obas (4)
81. Oberfelt (1)
82. Obonswawin (1)
83. Ochu (2)
84. Odachi (2)
85. Odesky (1)
86. Offe (3)
87. Offord (1)
88. Offrase (1)
89. Ogilvie (2)
90. Ogilvie Flour Mills Ltd (1)
91. Ogla (1)
92. Ohern (2)
93. Oiselle (1)
94. Okediachi (1)
95. Okley (1)
96. Oko (1)
97. Okuda (2)
98. Okulich (1)
99. OldJord (1)
100. Olenech (2)
101. Olenynscz (1)
102. Olier (1)
103. Oliphant (2)
104. Oliveira (1)
105. Oliver (5)
106. Olivier (24)
107. Olmstead (1)
108. Olsen (6)
109. Olskeski (1)
110. Olson (11)
111. Olsum (1)
112. Oman (2)
113. Omans (2)
114. Omerson (1)
   115. Onatus (2)
116. Oniel (1)
117. Onington (1)
118. Ontario Beauty Supply Co. Ltd (1)
119. Ontario Hughes-Owens Co Ltd (1)
120. Ontario Ready Mix Concrete Ltd Garage (1)
121. Ontario Stop Fire Rgd. (1)
122. Ontario Upholstering (1)
123. Onyajn (2)
124. Onyscyuk (2)
125. Oosterhoff (1)
126. Opimachianikive (2)
127. Oppici (1)
128. Orange (2)
129. Ordonez (2)
130. Ore de Grandm. (1)
131. Oré de Grandmont (3)
132. Orifice (1)
133. Ormaire (1)
134. Ormond (2)
135. Orr (5)
136. Ortega (2)
137. Ortie (1)
138. Orvicault (1)
139. Osborn (2)
140. Osborne (34)
141. Osburn (5)
142. Osgoode (1)
143. Oshas (4)
144. Oskie (1)
145. Osmond (1)
146. Osthrault (1)
147. Osty (1)
148. Oswald (1)
149. Otis (8)
150. Ott (1)
151. Ottawa Battery & Tire Co. (1)
152. Ottawa Day Nursery (1)
   153. Ottawa District Farmes Co-op (1)
154. Ottawa Drug Co. Ltd (1)
155. Ottawa Fire Alarm (1)
156. Ottawa General Hospital (4)
157. Ottawa General Hospital Annex (1)
158. Ottawa General Hospital eployee Residence (1)
159. Ottawa General Hospital Residence (2)
160. Ottawa Hebrew Benevolant Society (1)
161. Ottawa Imperial Cap Co. (2)
162. Ottawa Iron Works Ltd. (1)
163. Ottawa Jobbing Co Clothing (1)
164. Ottawa Library (1)
165. Ottawa Meat and Fish Market (1)
166. Ottawa Produce Co. Wholesale Fruit (1)
167. Ottawa Rowing Club (1)
168. Ottawa Talmund Torah Hebrew School (1)
169. Ottawa Transportation Comm. (1)
170. Ottawa Valet Service (1)
171. Ottawa Valley Dist Office (1)
172. Ottawa Wreckers (1)
173. Ouelette (1)
174. Ouellet (18)
175. Ouellett (1)
176. Ouellette (206)
177. Ouellette Coté (1)
178. Ouimet (51)
179. Ouimette (1)
180. Our Lady Separate School (1)
181. Owen (2)
182. Owens (6)
183. Ower (1)
184. Ozere (1)
185. Ozorak (2)
186. Ozoux (2)