| Ugny-le-Gay | |
| Commune Status: | Commune |
| Arrondissement: | Laon |
| Canton: | Chauny |
| Insee: | 02754 |
| Postal Code: | 02300 |
| Mayor: | Sylvie Lelong[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Chauny Tergnier La Fère |
| Coordinates: | 49.6606°N 3.1608°W |
| Elevation M: | 90 |
| Elevation Min M: | 66 |
| Elevation Max M: | 169 |
| Area Km2: | 5.9 |
Ugny-le-Gay (in French pronounced as /yɲi lə ɡɛ/) is a commune in the Aisne department in Hauts-de-France in northern France.