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Surname List: Begins with O


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

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1. O (1)
2. O Connell (3)
3. O Dell (2)
4. O Underhill (1)
5. O"CONNOR (1)
6. O"Donnell (1)
7. O'Bannon (4)
8. O'Beirne (4)
9. O'Boyle (1)
10. O'Bree (13)
11. O'Briant (1)
12. O'Brien (166)
13. O'Brien (OBrian) (1)
14. O'Brien-Ara (1)
15. O'Bryan (3)
16. O'Callaghan (26)
17. O'CALLAHAN (1)
18. O'Canaan (1)
19. O'Carroll (6)
20. O'Cathan (2)
21. O'Cock (1)
22. O'Connell (19)
23. O'conner (6)
24. O'Connor (16)
25. O'Corra Curry (1)
26. O'Crowley (2)
27. O'cull (1)
28. O'Day (1)
29. O'Dea (3)
30. O'Dell (5)
31. O'Donall (1)
32. O'Donel (1)
33. O'Donnal (1)
34. O'Donnell (15)
35. O'Dougherty (1)
36. O'Driscoll (6)
37. O'Dwyer (3)
38. O'Farrell (1)
39. O'Ferrall (1)
40. O'Gorman (3)
41. O'Grady (6)
42. O'Hagan (1)
43. O'Halloran (7)
44. O'Haloran (1)
45. O'Hanlon (2)
46. O'Hara (12)
47. O'Hare (2)
48. O'Hurley (2)
49. O'Kane (2)
50. O'Kearney (3)
51. O'KEEFE (5)
52. O'Keeffe (1)
53. O'Kelly (1)
54. O'LEARY (48)
55. O'Mahon (2)
56. O'Mahoney (3)
57. O'MALLEY (21)
58. O'Mara (1)
59. O'Meagher (1)
60. O'Mealy (later O'Malley) (2)
61. O'Meara (1)
62. O'nbeal (1)
63. O'neal (4)
64. O'Neale (3)
65. O'Neil (18)
66. O'Neild (1)
67. O'Neile (1)
68. O'Neill (36)
69. O'Rahilly (4)
70. O'Rear (1)
71. O'Reilly (19)
72. O'Rorke (4)
73. O'Rourke (2)
74. O'Ryan (1)
75. O'SHANNESSEY (1)
76. O'Shaugnessy (1)
77. O'Shea (3)
78. O'Shera (1)
79. O'SULLIVAN (4)
80. O'Toole (3)
81. Oades (119)
82. Oakden (4)
83. Oake (1)
84. OáKeefe (1)
85. Oakenfull (1)
86. Oakes (77)
87. Oakes (Natural son) (1)
88. Oakey (10)
89. Oakland (11)
90. Oakley (38)
91. Oaks (16)
92. Oaksford (1)
93. Oar (7)
94. Oars (1)
95. Oastler (1)
96. OáSullivan (1)
97. OATAWAY (1)
98. Oaten (1)
99. Oates (1697)
100. Oates (Oddy) (1)
101. Oates (Otes) (4)
102. Oates (Otte) (2)
103. Oates Longden (1)
104. Oats (538)
105. Oatway (1)
106. Obbard (42)
107. Obee (1)
108. Obenchain (6)
109. Ober (1)
110. Oberhofer (3)
111. Oberon (1)
112. Obleia (1)
113. Oblein (7)
114. Oborn (1)
115. Oborne (1)
116. Obrey (1)
117. Obrien (1)
118. Ochoa (1)
119. Ochterlony (1)
120. Ockerby (1)
121. Ockham (1)
122. Ockley (3)
123. Ockwell (2)
124. Oconostota (2)
125. Octavius (1)
126. Odams (1)
127. Oddy (10)
128. ODEL (1)
129. Odell (126)
130. Odey (4)
131. ODGEN (1)
132. Odger (2)
133. Odgers (13)
134. Odlin (2)
135. Odling (12)
136. ODLUM (5)
137. Odom (2)
138. OEHKLE (1)
139. Oehley (1)
140. Oelrichs (1)
141. Oertel (10)
142. of (13)
143. of Achalas (1)
144. of Alania (1)
145. of Albon (4)
146. of Aldithley (3)
147. of Aldithley (Audley) (1)
148. of Alemanni? (1)
149. of Alencon (1)
150. of Almaine (1)
151. of Alsace (2)
152. of Altdorf (1)
153. of Amnia (1)
154. of Andechs (1)
155. of Andechs-Merania (1)
156. of Anhalt-Köthen (1)
157. of Anjou (16)
158. of Antigny (1)
159. of Antioch (1)
160. of Antwerp (2)
161. of Aquitaine (8)
162. of Aquitaine, of Poitiers (1)
163. of Aquitaine, of Poitou (1)
164. of Aragón (14)
165. of Aragón, of Barcelona (1)
166. of Argyll (3)
167. of Arimathea (1)
168. of Arles (2)
169. of Armagnac (1)
170. of Armenia (2)
171. of Artois (11)
172. of Ascania (61)
173. of Athens (1)
174. of Austrasia (2)
175. of Austria (15)
176. of Austria-Este (1)
177. of Austria-Tuscany (1)
178. of Auvergne (1)
179. of Avesnes (of Hainaut) (1)
180. of Babenberg (4)
181. of Baden (3)
182. of Baden-Durlach (1)
183. of Bage (1)
184. of Bar (4)
185. of Bar-sur-Seine (1)
186. of Barby-Mühlingen (1)
187. of Barcelona (1)
188. of Barcelona Borrel (1)
189. of Barnstaple (1)
190. of Battenberg (6)
191. of Baudmon (1)
192. of Bavaria (19)
193. of Bavaria-Landshut (1)
194. of Bavaria-Munich (1)
195. of Beaujeu (Beaujolais) (1)
196. of Bentheim-Steinfurt (1)
197. of Berain (1)
198. of Berg(u) (1)
199. of Bergamo (1)
200. of Berlepsch (1)
201. of Bernadotte (1)
202. of Bernicia (4)
203. of Beverly (1)
204. of Bigorre (1)
205. of Bisey (1)
206. of Blois (13)
207. of Bohemia (32)
208. of Bohemia and Hungary (1)
209. of Borovsk (1)
   210. of Bosnia (1)
211. of Boulogne (2)
212. of Bourbon (11)
213. of Bourbon-La Marche (1)
214. of Bourbon-Palma (1)
215. of Bourbon-Parma (4)
216. of Bourbon-Two Sicilies (3)
217. of Bourbon-Two-Sicilies (1)
218. of Brabant (7)
219. of Braganza (1)
220. of Brancewell (1)
221. of Brandenburg (11)
222. of Brandenburg-Ansbach (2)
223. of Brandenburg-Bayreuth (2)
224. of Brandenburg-Kulmbach (2)
225. of Brandenburg-Schwedt (1)
226. of Brechin (2)
227. of Bretagne (1)
228. of Breton (1)
229. of Brieg (1)
230. of Brienne (4)
231. of Brittany (10)
232. of Broomshull (1)
233. of Brunswick (2)
234. of Brunswick and Lunenburg (1)
235. of Brunswick-Dannenberg (1)
236. of Brunswick-Grubenhagen-Einbeck (1)
237. of Brunswick-Lüneburg (13)
238. of Brunswick-Lüneburg, of Celle (1)
239. of Brunswick-Wolfenbuttel (6)
240. of Brunswick-Wolfenbüttel (7)
241. of Brunswick-Wolfenbüttel-Bevern (1)
242. of Bulgaria (1)
243. of Buonalbergo (1)
244. of Burgundy (43)
245. of Burgundy-Ivrea (1)
246. of Bytom (1)
247. of Byzantium (2)
248. of Cainhoe (7)
249. of Cambridge (3)
250. of Canossa (1)
251. of Carinthia (5)
252. of Carinthia-Tyrol (1)
253. of Carisbrook (1)
254. of Castile (7)
255. of Castile And Leon (2)
256. of Chalon (7)
257. of Champagne (1)
258. of Châtenois (1)
259. of Châtillon (3)
260. of Chester (1)
261. of Chiemsee (1)
262. of Cilli (1)
263. of Clarence (2)
264. of Clarence, Countess of Ulster de Burgh (1)
265. of Clarence, Prince of England Plantagenet (1)
266. of Clement (1)
267. of Clermont (1)
268. of Cleves (9)
269. of Clifton (4)
270. of Clinton (1)
271. of Cognac (1)
272. of Comburg (Komburg) (1)
273. of Conisburgh (1)
274. of Constantinople (2)
275. of Cornwall (2)
276. of Coucy (1)
277. of Courland (1)
278. of Courtenay (5)
279. of Cyllin (1)
280. of Dagsbourg (1)
281. of Dagsburg (1)
282. of Damascus (2)
283. of Dampierre (4)
284. of Danneskjold-Samsøe. (1)
285. of Denmark (17)
286. of Denmark and Norway (1)
287. of Devon (1)
288. of Dimitrov (1)
289. of Dmitrov (1)
290. of Douglas (1)
291. of Drakelow de Swynnerton (1)
292. of Dreux (2)
293. of Dublin (1)
294. of Dudley Sutton Tibetot Tiptoft (1)
295. of Dunbar (1)
296. of Dunegal (1)
297. of Durazzo (2)
298. of Durham (1)
299. of East Anglia (1)
300. of East Frisia (1)
301. of Ebersdorf (1)
302. of Edessa (1)
303. of Egypt (1)
304. of Elchingen-Ravenstein (1)
305. of England (24)
306. of England Plantagenet (2)
307. of Erbach (2)
308. of Erbach-Schönberg (1)
309. of Essex (1)
310. of Estridsen (9)
311. of Faremoutiers (1)
312. of Flanders (13)
313. of Formbach (1)
314. of Fortià (1)
315. of France (14)
316. Of France and Navarre Capet (1)
317. of Franconia (1)
318. of Friston (1)
319. of Friuli (3)
320. of Galitsch (1)
321. of Galitzky (1)
322. of Galloway (2)
323. of Gaunt (Ghent) (1)
324. of Gaunt Duke of Lancaster Plantagenet Beaufort KG (1)
325. of Geneva (3)
326. of Germany (4)
327. of Gilsland (2)
328. of Glinski (2)
329. of Glogau (1)
330. of Gloucester (1)
331. of Gorizia-Tyrol (1)
332. of Gorze (1)
333. of Grapfeld (1)
334. of Great Britain (1)
335. of Greece (1)
336. of Greece and Denmark, House of Oldenburg (1)
337. of Groitzsch (1)
338. of Grosmont (2)
339. of Guelders (Gueldres) (1)
340. of Guelph (1)
341. of Guînes (1)
342. of Guise (1)
343. of Gwent (1)
344. of Görlitz (1)
345. of Görz (Gorizia) (1)
346. of Habsburg (40)
347. of Hainault d'Avesnes (1)
348. of Hainault De Valois (1)
349. of Hainaut (9)
350. of Hanau (1)
351. of Hanau-Lichtenberg and Müntzenberg (1)
352. of Hanover (6)
353. of Harcourt (2)
354. of Harde Knud (1)
355. of Hatton (1)
356. of Hauteville (15)
357. of Heinsberg (1)
358. of Henneberg (2)
359. of Hereford (2)
360. of Hesbaye (1)
361. of Hesse (23)
362. of Hesse-Darmstadt (3)
363. of Hesse-Kassel (2)
364. of Hesse-Philippsthal (1)
365. of Hinderink (1)
366. of Hohenberg (1)
367. of Hohenburg (Hohenzollern) (1)
368. of Hohenheim (1)
369. of Hohenlohe-Langenburg (5)
370. of Hohenstaufen (9)
371. of Hohenstein (1)
372. of Hohenthal (2)
373. of Hohenzollern (15)
374. of Holland (4)
375. of Holland and Hainault Prince of Orange D' Avesnes (1)
376. of Holstein (1)
377. of Holstein-Itzehoe (1)
378. of Hungary (5)
379. of Ibelin (4)
380. of Ingersleben (1)
381. of Ireland (5)
382. of Isenburg-Limburg (1)
383. of Ivrea (3)
384. of Jaroslavl (1)
385. of Jerusalem (6)
386. of Jever (1)
387. of Joinville (1)
388. of Juliers (1)
389. of Jülich (1)
390. of Jülich-Berg (1)
391. of Kemeys (1)
392. of Kent (1)
393. of Khazaria (1)
394. of Khazaria (Tzitzak) (1)
395. of Kiev (1)
396. of Krosigk (1)
397. of Kuijc and Malsen (1)
398. of Laigle (1)
399. of Lancaster (3)
400. of Landen (2)
401. of Landsberg (1)
402. of Langley (1)
403. of Laon (1)
404. of Lechaber (1)
405. of Leiningen (2)
406. of Leiningen-Dagsburg (1)
407. of Leiningen-Dagsburg-Falkenburg (1)
408. of Lennox (1)
409. of León (1)
410. of Leszczyński (1)
411. of Leuchars (1)
412. of Leuchtenberg (1)
413. of Leuven (3)
414. of Lichtenberg (1)
415. of Liechtenstein (3)
416. of Limburg (1)
417. of Limoges (1)
418. of Lincoln (1)
   419. of Lindow-Ruppin (1)
420. of Lippe (1)
421. of Lippe-Biesterfeld (1)
422. of Lith (1)
423. of Lithuania (6)
424. of Londesbrough (2)
425. of Loon (de Looz) (1)
426. of Loon-Heinsberg (1)
427. of Lorche (1)
428. of Lorn (1)
429. of Lorne (1)
430. of Lorraine (18)
431. of Lotharingia (1)
432. of Louvain (3)
433. of Lower Burgundy (1)
434. of Lower Lorraine (2)
435. of Lusignan (4)
436. of Luxembourg (5)
437. of Luxembourg (of Bohemia) (1)
438. of Löwenstein-Wertheim-Rosenberg (5)
439. of Macon (1)
440. of Mâcon and Vienne (1)
441. of Maine (1)
442. of Malojaroslavsky (1)
443. of Mansfeld-Arnstein (1)
444. of Mar (2)
445. of Marash (1)
446. of Martin (4)
447. of Masovia (1)
448. of Maurienne, House of Savoy (1)
449. of Mayenne (1)
450. of Mecklenburg (2)
451. of Mecklenburg-Güstrow (2)
452. of Mecklenburg-Schwerin (9)
453. of Mecklenburg-Strelitz (5)
454. of Meissen (Meißen) (2)
455. of Melitene (1)
456. of Merania (1)
457. of Mercia (8)
458. of Mergentheim (1)
459. of Metz (7)
460. of Moab (1)
461. of Mojaisk (2)
462. of Montbéliard (4)
463. of Montenegro (1)
464. of Montfaucon (1)
465. of Montferrat (6)
466. of Montlhéry (1)
467. OF MORE AND ROMSDAL (1)
468. of Morggán (1)
469. of Moscow (45)
470. of Moselle (1)
471. of Nahash (1)
472. of Namur (5)
473. of Naples and Sicily (3)
474. of Naples Capet d'Anjou-Sicily (1)
475. of Nassau (6)
476. of Nassau-Dietz (1)
477. of Nassau-Ouwerkerk (1)
478. of Nassau-Usingen (1)
479. of Nassau-Weilburg (3)
480. of Navarre (12)
481. of Nazareth (1)
482. of Neufchâtel (1)
483. of Neuffen (1)
484. of Nevers (2)
485. of Nonant (Novaunt) (1)
486. of Nordgau (1)
487. of Normandy (14)
488. of Northampton (1)
489. of Northeim (2)
490. of Northumbria (14)
491. of Norway (1)
492. of Norwich (2)
493. of Novgorod (2)
494. of Nuremberg (1)
495. of Nürnberg (1)
496. of Oettingen (1)
497. of Oldenburg (10)
498. of Opole (1)
499. of Orange (3)
500. of Orange-Nassau (9)
501. of Orcades (1)
502. of Orleans (3)
503. of Paris (4)
504. of Paris (of Friuli) (2)
505. of Pawel-Rammingen (2)
506. of Penrhyn (1)
507. of Perche (1)
508. of Périgord (1)
509. of Pfirt (3)
510. of Picts (3)
511. of Pless (1)
512. of Poland (26)
513. of Polesworth (1)
514. of Polotsk (1)
515. of Pomerania (4)
516. of Pomerania-Stettin (1)
517. of Portugal (7)
518. of Portugal, of Braganza (1)
519. of Priest (1)
520. of Prum (1)
521. of Rascia, of Vukanovi? (1)
522. of Ravensberg (1)
523. of Reginar (2)
524. of Rethel (1)
525. of Reuss (1)
526. of Rheineck, of Salm (1)
527. of Rheinfelden (2)
528. of Ringleheim (1)
529. of Robert (1)
530. of Rooksnest surrey (1)
531. of Rosenburg (1)
532. of Rosenfeld (1)
533. of Rott (1)
534. of Rugia (1)
535. of Rumigny (1)
536. of Rurik Dynasty (11)
537. of Russia (11)
538. of Rügen (1)
539. of Saarbrücken (1)
540. of Saint Omer (1)
541. of Saint-Simon (1)
542. of Salisbury (1)
543. of Sardinia (4)
544. of Savoi (1)
545. of Savoie (1)
546. of Savoy (15)
547. of Savoy-Genoa (1)
548. of Saxe (1)
549. of Saxe-Altenburg (2)
550. of Saxe-Coburg and Gotha (7)
551. of Saxe-Coburg and Gotha, House of Wettin (2)
552. of Saxe-Coburg-Gotha, House of Wettin (1)
553. of Saxe-Coburg-Saalfeld (2)
554. of Saxe-Eisenach (2)
555. of Saxe-Gotha (2)
556. of Saxe-Gotha-Altenburg (1)
557. of Saxe-Hildburghausen (3)
558. of Saxe-Meiningen (2)
559. of Saxe-Weimar (1)
560. of Saxe-Weimar-Eisenach (1)
561. of Saxe-Weissenfels (1)
562. of Saxe-Wittenberg (3)
563. of Saxe-Zeitz (1)
564. of Saxony (11)
565. of Saxony (Saxe) (1)
566. of Sayn-Wittgenstein (2)
567. of Schauenburg (1)
568. of Schaumburg (1)
569. of Schaunberg (1)
570. of Schlesien Liegnitz (1)
571. of Schleswig (1)
572. of Schleswig-Holstein (1)
573. of Schleswig-Holstein-Sonderburg-Augustenburg (6)
574. of Schleswig-Holstein-Sonderburg-Beck, von Holstein-Beck, von Ziedewitz (1)
575. of Schleswig-Holstein-Sonderburg-Glucksburg (3)
576. of Schleswig-Holstein-Sonderburg-Glücksburg (5)
577. of Schleswig-Holstein-Sonderburg-Glücksburg, House of Oldenburg (1)
578. of Schwarzburg-Sondershausen (1)
579. of Schweidnitz (Świdnica) (1)
580. of Scotland (7)
581. of Scotland de Huntingdon (1)
582. of Seville (1)
583. of Shaftesbury (1)
584. of Sheba (1)
585. of Sheppey (1)
586. of Shrewsbury (1)
587. of Sicily (9)
588. of Sidon (1)
589. of Sigurd (1)
590. of Silesia-Glogau (1)
591. of Simmern (2)
592. of Slupsk (3)
593. of Slutsk (1)
594. of Smolensk (3)
595. of Solms-Laubach (4)
596. of Somerville (1)
597. of Sommerschenburg (1)
598. of Southwark (1)
599. of Spain (4)
600. of Spoleto (1)
601. of Sponheim (1)
602. of Staden (1)
603. of Stolberg (1)
604. of Stone Shropshire De Stafford (1)
605. of Strathbogie (6)
606. of Sulzbach (4)
607. of Supplinburg (1)
608. of Susa (1)
609. of Suzdal (2)
610. of Swabia (4)
611. of Swabia (Linzgau) (1)
612. of Swynford and Lancaster de Roet (1)
613. of Süpplingenburg (1)
614. of Tankerville (1)
615. of Teck (3)
616. of Tegeingl (1)
617. Of Tellico (1)
618. of the Bani Cays Aylân (1)
619. of the Berbers (1)
620. of the Cenél Conaill dynasty (2)
621. of the Cenél nEógain dynasty (5)
622. of the Franks (3)
623. of the Gaini (1)
624. of the Khozâites (1)
625. of the Palatinate (4)
626. of the Palatinate-Neuburg (1)
627. of the Palatinate-Zweibrücken (1)
   628. of the Palatine of Neuburg (2)
629. of the Rhine (1)
630. of the Tatars (1)
631. of the Tower (1)
632. of the Two Sicilies (5)
633. of the Two Sicilies (Naples and Sicily) (1)
634. of the Uí Néill dynasty (1)
635. of the Visigoths (1)
636. of Thuringia (8)
637. of Totnes (1)
638. of Toulouse (3)
639. of Tours (2)
640. of Trotta-Treyden (1)
641. of Troy (2)
642. of Troyes (1)
643. of Tver (2)
644. of Tübingen (1)
645. of Uglitsch (3)
646. of Upper Lorraine (1)
647. of Uppsale Eriksson (1)
648. of Valois (6)
649. of Valois and of the Vexin (1)
650. of Valois of Angoulême (1)
651. of van Rode (1)
652. of Varteig (1)
653. of Vaudémont (2)
654. of Verdun (1)
655. of Vermandois (3)
656. of Viennois (1)
657. of Vitebsk (1)
658. of Vladimir (2)
659. of Volgoda (1)
660. of Volok (1)
661. of Waldeck (1)
662. of Waldeck and Pyrmont (2)
663. of Wales (9)
664. of Wallingford (1)
665. of Wedderburn (1)
666. of Welf (7)
667. of Werle (4)
668. of Werle-Güstrow (1)
669. of Wessex (6)
670. of Westphalia (1)
671. of Wettin (48)
672. of Wettin, of Habsburg-Lorraine (1)
673. of Wigmore (1)
674. of Winchester (1)
675. of Wittelsbach (14)
676. of Woodstock (7)
677. of Worms (1)
678. of Worms and Rheingau (3)
679. of Wroclaw (1)
680. of Württemberg (7)
681. of Württemberg-Winnental (1)
682. of York (15)
683. of Ysenburg And Budingen (1)
684. of Ysenburg and Büdingen (2)
685. of Ysenburg und Büdingen (1)
686. of Ysenburg-Büdingen (1)
687. of Zeutch (1)
688. of Zähringen (17)
689. Offell (2)
690. Offen (1)
691. Offer (1)
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