Surname List: Begins with O

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

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1. O'brien (1)
2. O'connor (1)
3. O'dell (1)
4. Oakden (4)
5. Oakes (5)
6. OAKLEY (5)
7. Oatley (2)
8. O’Brien (4)
9. O’Connell (2)
10. O’Dell (15)
11. O’Dickey (8)
12. O’Donnell (1)
13. O’Kelly (1)
14. O’Neil (4)
15. Oberholtzer (595)
16. Oberholzer (13)
17. Oborn (6)
18. Ochs (2)
19. Odding (1)
20. Odell (4)
21. Odum (3)
22. Oedewaldt (1)

23. Oehlert (1)
24. Oesh (1)
25. Of Mariet (1)
26. Of Norwich (1)
27. Of Wellington (1)
28. Off (1)
29. Of_hereford (1)
30. Of_moray (1)
31. Of_scotland (1)
32. Of_winchester (1)
33. Ogilvie (1)
34. Ogleby (1)
35. Ohl (1)
36. Ohlemacher (2)
37. Oldenburg (2)
38. Oldershaw (1)
39. Oldfield (2)
40. Olds (5)
41. Oldsdatter (1)
42. Ole (1)
43. Olerio (2)
44. Olesdatter (1)

45. Olesen (4)
46. OLESON (1)
47. OLIN (6)
48. OLIVE (2)
49. Oliver (5)
50. Olives (7)
51. Olmedo (1)
52. Olmstead (8)
53. OLNEY (7)
54. Olpin (12)
55. Olsdatter (Pedersen) (1)
56. Olsdatter (Peterson) (1)
57. Olsen (13)
58. Olsen (Pedersen) (1)
59. Olsen (Petersen) (1)
60. Olson (1)
61. Oltman (1)
62. Onderdonk (2)
63. Op De Graeff (2)
64. Op Den Graeff (2)
65. Opdegraf (3)
66. Opedycke (1)

67. Oppliger (1)
68. Opplinger (2)
69. ORAHOSKE (2)
70. Oram (2)
71. Orcutt (1)
72. Orem (3)
73. Orgill (1)
74. Ormerod (2)
75. Orner (1)
76. Orosvenor (1)
77. Orton (4)
78. Orum (1)
79. Osborn (13)
80. Osborne (7)
81. Osguthorpe (1)
82. Osman (1)
83. Osmon (4)
84. Osterkamp (1)
85. Oswald (1)
86. Otis (1)
87. Otmiller (1)
88. Ott (1)

89. Ottinger (2)
90. Otto (1)
91. Ouldham (2)
92. Ousley (1)
93. Outcalt (3)
94. Outman (1)
95. Outwater (1)
96. Oval (6)
97. Over (1)
98. Overdorf (2)
99. Overholt (50)
100. Overholtzer) (1)
101. Overleas (1)
102. Overpeck (2)
103. Overstreet (2)
104. Ovesen Mork (1)
105. Oviatt (11)
106. Ovitt (1)
107. Owen (82)
108. Owens (13)
109. Oysterbanks (1)

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