Commune/Paroisse : Thonon-les-Bains [Haute-Savoie] 
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | CU | 1609 | 1 |
| 2. | CUBI | 1602-1634 | 4 |
| 3. | CUBIT | 1638 | 1 |
| 4. | CUBY | 1606-1647 | 2 |
| 5. | CUBYT | 1635 | 1 |
| 6. | CUDO | 1671 | 1 |
| 7. | CUENY | 1651 | 1 |
| 8. | CUILLERIZ | 1679 | 1 |
| 9. | CUILLERY | 1666-1668 | 2 |
| 10. | CUILLIERY | 1640 | 1 |
| 11. | CUL | 1610-1675 | 10 |
| 12. | CUL DIT PISSOT | 1654-1677 | 13 |
| 13. | CULLA | 1900 | 1 |
| 14. | CULLAUD | 1610 | 1 |
| 15. | CULLERI | 1608 | 1 |
| 16. | CULLERY | 1655-1676 | 3 |
| 17. | CULLIERI | 1658 | 1 |
| 18. | CULLIERY | 1662-1696 | 8 |
| 19. | CULLOD | 1611 | 1 |
| 20. | CUNAZ | 1645 | 1 |
| 21. | CUNIFLORAND | 1656 | 1 |
| 22. | CUPELIN | 1661-1668 | 2 |
| 23. | CUPELLAIN | 1658 | 1 |
| 24. | CUPELLIN | 1665 | 1 |
| 25. | CURAZ | 1686 | 1 |
| 26. | CURDY | 1869-1890 | 3 |
| 27. | CURSAT | 1687-1697 | 4 |
| 28. | CURTILLIET | 1637 | 1 |
| 29. | CUSENAZ | 1630-1696 | 3 |
| 30. | CUSIN | 1867-1900 | 8 |
| 31. | CUSINANT | 1649 | 1 |
| 32. | CUSINAT | 1616-1691 | 4 |
| 33. | CUSTAZ | 1670-1678 | 2 |
| 34. | CUT DIT PICHOT | 1606 | 1 |
| 35. | CUTA | 1662-1674 | 3 |
| 36. | CUTAZ | 1637-1686 | 9 |
| 37. | CUTET | 1655 | 1 |
| 38. | CUTTAZ | 1659 | 1 |
| 39. | CUZ | 1614-1667 | 3 |
| 40. | CUZ DIT PISSOT | 1653-1660 | 3 |
| 41. | CUZENA | 1683 | 1 |
| 42. | CUZENAT | 1655 | 1 |
| 43. | CUZENAZ | 1685 | 1 |
| 44. | CUZIN | 1870 | 1 |
| 45. | CUZINA | 1668 | 1 |