| Fontaine-lès-Clercs | |
| Commune Status: | Commune |
| Arrondissement: | Saint-Quentin |
| Canton: | Ribemont |
| Insee: | 02320 |
| Postal Code: | 02680 |
| Mayor: | Frédéric Maudens[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Saint-Quentinois |
| Coordinates: | 49.8064°N 3.2236°W |
| Elevation M: | 84 |
| Elevation Min M: | 67 |
| Elevation Max M: | 102 |
| Area Km2: | 5.33 |
Fontaine-lès-Clercs is a commune in the Aisne department in Hauts-de-France in northern France.