Naissances / Baptêmes
Commune/Paroisse : Bayonne [Pyrénées Atlantiques] 
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | ORADOU | 1924 | 2 |
| 2. | ORAIN | 1889-1890 | 2 |
| 3. | ORAIN DUCAMP | 1874 | 1 |
| 4. | ORANSIN | 1827 | 1 |
| 5. | ORANVAL | 1827 | 1 |
| 6. | ORARBIDE | 1905 | 1 |
| 7. | ORBAICETA | 1917-1919 | 2 |
| 8. | ORCABERRO | 1810 | 1 |
| 9. | ORCAMENDY | 1926 | 1 |
| 10. | ORCASBERRO | 1869 | 1 |
| 11. | ORDANIZ | 1908 | 1 |
| 12. | ORDINET | 1828 | 1 |
| 13. | ORDOGUY | 1896 | 1 |
| 14. | ORDOÑEZ | 1928 | 1 |
| 15. | ORDONNAUD | 1940 | 1 |
| 16. | ORDONNÈS | 1929-1934 | 4 |
| 17. | ORDOQUI | 1920-1943 | 5 |
| 18. | ORDOQUY | 1827-1913 | 6 |
| 19. | ORDOSGOÏTY | 1823 | 1 |
| 20. | ORDOZGOITI | 1903 | 1 |
| 21. | ORDUNA | 1939 | 1 |
| 22. | OREZ | 1885 | 1 |
| 23. | ORGAMBURU | 1910-1915 | 3 |
| 24. | ORGAN | 1828 | 1 |
| 25. | ORGAZ | 1847-1854 | 2 |
| 26. | ORGEL | 1832 | 1 |
| 27. | ORGELÈS | 1911 | 1 |
| 28. | ORGINAGUE | 1853-1869 | 2 |
| 29. | ORGOGOZO | 1900-1910 | 5 |
| 30. | ORIBE | 1889 | 1 |
| 31. | ORILLARD | 1865-1911 | 7 |
| 32. | ORIOZOLA | 1941 | 1 |
| 33. | ORISBÉHÉRIA | 1891 | 1 |
| 34. | ORISBÉHÉRIA (URTIZBÉRÉA) | 1891 | 1 |
| 35. | ORISTAN | 1881 | 1 |
| 36. | ORLEAC | 1897 | 1 |
| 37. | ORMACHEA | 1910 | 1 |
| 38. | ORMAECHEA | 1876 | 1 |
| 39. | ORMAZABAL | 1869 | 1 |
| 40. | ORME | 1823 | 1 |
| 41. | ORNA | 1857-1897 | 13 |
| 42. | ORONOS | 1931 | 1 |
| 43. | ORONOTZ | 1921 | 1 |
| 44. | ORONOZ | 1885-1899 | 4 |
| 45. | OROS | 1909 | 1 |
| 46. | OROZ | 1876-1892 | 7 |
| 47. | ORRABÉHÈRE | 1815-1817 | 2 |
| 48. | ORSET | 1930 | 1 |
| 49. | ORSO (D') | 1942-1943 | 2 |
| 50. | ORTALA | 1900 | 1 |
| 51. | ORTAN | 1832 | 1 |
| 52. | ORTÉGA | 1886-1938 | 18 |
| 53. | ORTET | 1903-1943 | 15 |
| 54. | ORTET-ALHAÇAGAR | 1886 | 1 |
| 55. | ORTHET | 1907-1943 | 15 |
| 56. | ORTHOLAN | 1865-1907 | 3 |
| 57. | ORTIZ | 1911-1938 | 3 |
| 58. | ORTIZ DE ZARATE | 1942 | 1 |
| 59. | ORTIZ DE ZUGASTI | 1838 | 1 |
| 60. | ORTIZEBEREA (DE) | 1869 | 1 |
| 61. | ORUEZABALA | 1937 | 1 |
| 62. | ORY | 1881-1932 | 12 |