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Surname List: Begins with O


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

Click on a surname to show matching records.   Main surname page  |  Show all surnames

1. O'Brian (1)
2. O'Brien (17)
3. O'Callaghan (1)
4. O'Connor (12)
5. O'Dee (1)
6. O'Donnell (5)
7. O'Flaherty (1)
8. O'Grady (1)
9. O'Hara (1)
10. O'Kane (3)
11. O'Keefe (1)
12. O'Keeffe (1)
13. O'Neill (3)
14. O'Reardon (1)
15. O'Rourke (1)
16. O'Shea (2)
17. O'Sullivan (2)
18. O'Toole (1)
19. Oakes (6)
20. Oakey (1)
21. Oakley (12)
22. Oakman (1)
23. Oates (3)
24. Oatley (5)
25. Obbard (11)
26. Ockwell (2)
27. Oddie (1)
28. Oddy (1)
   29. Odell (2)
30. Odlum (1)
31. Ody (1)
32. Oehlert (1)
33. Oelberg (1)
34. Offley (2)
35. Ogan (1)
36. Ogborn (1)
37. Ogden (6)
38. Ohrlund (1)
39. Ohronon (1)
40. Ohrtgies (1)
41. Okes (1)
42. Okewood (1)
43. Oki (1)
44. Old (14)
45. Olden (1)
46. Oldfather (1)
47. Oldfield (14)
48. Oldham (1)
49. Oldridge (5)
50. Olds (2)
51. Oldsage (1)
52. Oles (2)
53. Oliphant (9)
54. Oliver (37)
55. Olives (1)
56. Ollard (1)
   57. Ollett (1)
58. Olley (1)
59. Ollie (1)
60. Olliff (1)
61. Olliffe (4)
62. Olney (1)
63. Olsen (9)
64. Olson (1)
65. Olsovinek (1)
66. Olsson (1)
67. Olver (1)
68. Omick (1)
69. Onion (1)
70. Onions (5)
71. Openshaw (1)
72. Oram (2)
73. Orchard (15)
74. Orcutt (1)
75. Ord (2)
76. Orender (3)
77. Orendorf (1)
78. Orford (1)
79. Orgles (2)
80. Orman (1)
81. Orme (1)
82. Ormesher (1)
83. Ormston (2)
84. Orphin (1)
   85. Orr (1)
86. Orrell (1)
87. Orrow (1)
88. Orsini (2)
89. Orton (2)
90. Orts (1)
91. Orwin (3)
92. Osborn (4)
93. Osborne (40)
94. Oscroft (1)
95. Osgood (3)
96. Osman (8)
97. Osmond (1)
98. Ostle (1)
99. Ostrander (2)
100. Ostrom (1)
101. Oswald (2)
102. Oswick (4)
103. Oswold (1)
104. Otis (1)
105. Ott (6)
106. Ottaway (1)
107. Ottignon (10)
108. Ottley (1)
109. Otwell (1)
110. Oudot (1)
111. Oughton (1)
112. Ould (2)
   113. Oulton (1)
114. Ousby (1)
115. Ousley (1)
116. Outlaw (1)
117. Outram (1)
118. Outz (1)
119. Ovenden (2)
120. Ovenell (1)
121. Ovens (2)
122. Over (2)
123. Overbury (1)
124. Overholz (1)
125. Overnell (4)
126. Overton (13)
127. Overy (2)
128. Ovnell (1)
129. Owen (32)
130. Owen-Smith (1)
131. Owens (1)
132. Owles (1)
133. Oxby (1)
134. Oxford (1)
135. Oxlade (3)
136. Oxley (7)
137. Oxtoby (1)
138. Oyston (1)