Mariages
Commune/Paroisse : Ustaritz [Pyrénées-Atlantiques] 
| Patronymes | Périodes | Intervenant 1 | Intervenant 2 | |
|---|---|---|---|---|
| 1. | OGUIHANDY | 1839 | - | 1 |
| 2. | OHARCABAL | 1865 | - | 1 |
| 3. | OIHAMBURU | 1743 | - | 1 |
| 4. | OLHABERRY | 1872 | 1 | - |
| 5. | OLHAGARAY | 1742-1900 | 7 | 6 |
| 6. | OLHAIN | 1758 | - | 1 |
| 7. | OLHASQUE | 1830-1831 | 1 | 1 |
| 8. | OLHONDO | 1782 | 1 | - |
| 9. | ORBAÏCETA | 1776 | - | 1 |
| 10. | ORCASBERRO | 1891 | 1 | - |
| 11. | ORDOSGOYTI | 1872 | 1 | - |
| 12. | ORGAMBIDE | 1858 | - | 1 |
| 13. | ORGOGOZO | 1899 | 1 | - |
| 14. | ORIES | 1751 | 1 | - |
| 15. | ORTIZ | 1884 | 1 | - |
| 16. | OSPITAL | 1737-1894 | 3 | 7 |
| 17. | OTHERAN | 1745 | 1 | - |
| 18. | OTONDO | 1868 | - | 1 |
| 19. | OTTRONDO | 1777 | 1 | - |
| 20. | OTXARATZ | 1869 | 1 | - |
| 21. | OUCHU | 1781 | - | 1 |
| 22. | OURTAU | 1880 | 1 | - |
| 23. | OUSSIA | 1784-1831 | 1 | 1 |
| 24. | OUSSY | 1735 | - | 1 |
| 25. | OXANDABOURE | 1874 | 2 | - |
| 26. | OXONDOBÉHÈRE | 1900 | - | 1 |
| 27. | OYHAMBOURE | 1832 | 1 | - |
| 28. | OYHARCABAL | 1828-1877 | 1 | 4 |
| 29. | OYHENART | 1848-1874 | 1 | 2 |