Commune/Paroisse : Seyssel [Haute-Savoie] 
| Patronymes | Périodes | Actes | |
|---|---|---|---|
| 1. | FONTAINE | 1782 | 1 |
| 2. | FONTANET | 1811 | 1 |
| 3. | FORA | 1745 | 1 |
| 4. | FORAS | 1747 | 1 |
| 5. | FORAT | 1778 | 1 |
| 6. | FORAX | 1791 | 1 |
| 7. | FORAZ | 1738-1791 | 25 |
| 8. | FORESTIER | 1804 | 1 |
| 9. | FORET | 1750 | 1 |
| 10. | FORRAT | 1750-1805 | 10 |
| 11. | FORRAZ | 1790-1811 | 3 |
| 12. | FORT | 1812 | 1 |
| 13. | FOSSORIER | 1778-1799 | 4 |
| 14. | FOSSURIER | 1814 | 1 |
| 15. | FOULOZ | 1784 | 1 |
| 16. | FOUR | 1770 | 1 |
| 17. | FOURET | 1770 | 1 |
| 18. | FOURIER | 1746-1750 | 3 |
| 19. | FOURMIER | 1815 | 1 |
| 20. | FOURNIER | 1740-1814 | 94 |
| 21. | FOURRAZ | 1764 | 1 |
| 22. | FOURRIER | 1740-1809 | 9 |