Commune/Paroisse : Gaillard [Haute-Savoie] 
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | CO (N)VE (R)T | 1785 | 1 |
| 2. | COAGNIER | 1849 | 1 |
| 3. | COCHET | 1748-1890 | 14 |
| 4. | COHANIER | 1801 | 2 |
| 5. | COHANNIER | 1801-1810 | 3 |
| 6. | COHENDE | 1681 | 1 |
| 7. | COI (N)E | 1835 | 1 |
| 8. | COIGNE | 1823 | 1 |
| 9. | COIGNIER | 1799 | 1 |
| 10. | COLIS | 1801 | 1 |
| 11. | COLLET | 1691-1865 | 28 |
| 12. | COLLET DIT BRELLOT | 1751 | 1 |
| 13. | COLLOMB | 1855 | 1 |
| 14. | COLLON | 1823 | 1 |
| 15. | COLONA | 1876 | 2 |
| 16. | COLONNA | 1872-1877 | 2 |
| 17. | COMBARET | 1852-1855 | 2 |
| 18. | COMBELEPINE | 1819-1884 | 5 |
| 19. | COMBET | 1609-1839 | 6 |
| 20. | COMBET DIT LANIOD | 1637 | 1 |
| 21. | COMMERCE | 1783 | 1 |
| 22. | COMPTE | 1806 | 1 |
| 23. | COMTAT | 1854-1868 | 3 |
| 24. | COMTE | 1744-1840 | 3 |
| 25. | CONDEVAUX | 1876 | 1 |
| 26. | CONRAD | 1874 | 1 |
| 27. | CONSTANTIN | 1823-1886 | 5 |
| 28. | CONSTET | 1794 | 1 |
| 29. | CONTAT | 1639-1840 | 2 |
| 30. | CONTAT (COMTAT) | 1853 | 1 |
| 31. | CONTE | 1690-1812 | 2 |
| 32. | CONVERS | 1753 | 1 |
| 33. | CONVERSI | 1815-1845 | 6 |
| 34. | CONVERSI ? | 1815 | 1 |
| 35. | CONVERSY | 1793-1889 | 12 |
| 36. | CONVERT | 1761-1782 | 2 |
| 37. | COPPEL | 1889 | 1 |
| 38. | COQUILLE | 1876-1882 | 2 |
| 39. | CORAJOUD | 1757 | 1 |
| 40. | CORDIER | 1857 | 1 |
| 41. | CORIARD | 1806 | 1 |
| 42. | CORNILLAT | 1885 | 1 |
| 43. | CORNU | 1845-1880 | 2 |
| 44. | CORNUT | 1865-1872 | 2 |
| 45. | COSME | 1737 | 1 |
| 46. | COSTE | 1814-1882 | 3 |
| 47. | COTTA | 1801 | 2 |
| 48. | COTTET | 1719-1878 | 8 |
| 49. | COTTON | 1866 | 1 |
| 50. | COUAGNIER | 1837 | 1 |
| 51. | COUILLOU | 1807 | 1 |
| 52. | COULIN | 1794-1813 | 3 |
| 53. | COULLOU | 1808 | 2 |
| 54. | COULON | 1793 | 1 |
| 55. | COUPEL | 1759 | 2 |
| 56. | COUR | 1793 | 1 |
| 57. | COURIARD | 1801 | 1 |
| 58. | COURT | 1813 | 1 |
| 59. | COURTOIS | 1832-1848 | 5 |
| 60. | COUTURIER | 1832-1883 | 10 |
| 61. | COUTY | 1859-1872 | 3 |