Surname List: Begins with O

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

1. O'Brien (1)
2. O'Connor (37)
3. O'Donnell (1)
4. O'Hagan (1)
5. O'Hara (2)
6. O'Sullivan (2)
7. Oakley (5)
8. Oakman (1)
9. Oberle (4)
10. Oberwalder (2)
11. Obkircher (3)
12. of Ansbach (1)
13. of Aragón (2)
14. of Arles (5)
15. of Arnes (1)
16. of Barcelona (3)
17. of Bayeux (2)
18. of Bihar (1)
19. of Bohemia (2)
20. of Bourgogne (1)

21. of Bretagne (1)
22. of Canossa (1)
23. of Castile (5)
24. of Castile and Leon (2)
25. of Celle (1)
26. of Como (1)
27. of Denmark (1)
28. of England (2)
29. of Flanders (1)
30. of France (1)
31. of Friaul (1)
32. of Gaeta (1)
33. of Gascony (1)
34. of Great Britain and Northern Ireland, Princess Royal (1)
35. of Hanover (von der Pfalz) (1)
36. of Heristal (1)
37. of Hungary (6)
38. of Italy (2)
39. of Kiev (2)
40. of Landen (1)

41. of Langley (1)
42. of Lorraine (1)
43. of Lower-Lorraine (2)
44. of Mecklenberg (1)
45. of Mercia (2)
46. of Metz (1)
47. of Navarre (1)
48. of Nivelles (1)
49. of Normandy (11)
50. of Orleans (2)
51. of Paris (2)
52. of Pavia (1)
53. of Poland (2)
54. of Portugal (8)
55. of Reggio (1)
56. of Savoie (1)
57. of Saxe-Coburg (2)
58. of Saxe-Coburg & Gotha (1)
59. of Senlis (1)
60. of Seville (1)

61. of Sicily (1)
62. of Spoleta (1)
63. of Spoleto (6)
64. of Sweden (3)
65. of Teck (1)
66. of the Obotrites (1)
67. of Tuscany (1)
68. of Tusculum (1)
69. of Vinzgau (1)
70. of Wessex (6)
71. of Westfranken (1)
72. Offieri (1)
73. Ogrinc (2)
74. Olavsdottir of Norway (1)
75. Olavson (1)
76. Oliva (2)
77. Oliveira (1)
78. Oliveri (4)
79. Oppeneiger (1)
80. Oranges (1)

81. Ordonez (1)
82. Ordonez Ortiz (1)
83. Ordonhes (1)
84. Orecchi (17)
85. Orecchi (Orecchie) (3)
86. Origlia (1)
87. Oriolo (2)
88. Orlandi (2)
89. Orlando (3)
90. Orsini (65)
91. Orsini del Balzo (1)
92. Orsini di Monterotondo (3)
93. Orsino (3)
94. Ortner (2)
95. Osorez (1)
96. Ottinà (5)