| Tresnay | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Tresnay.svg |
| Coordinates: | 46.6978°N 3.1881°W |
| Insee: | 58296 |
| Postal Code: | 58240 |
| Arrondissement: | Nevers |
| Canton: | Saint-Pierre-le-Moûtier |
| Intercommunality: | Nivernais Bourbonnais |
| Mayor: | Christian Guillon[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 190 |
| Elevation Max M: | 225 |
| Area Km2: | 18.15 |
Tresnay (in French pronounced as /tʁɛnɛ/) is a commune in the Nièvre department in central France.[2]
On 1 January 2019, the estimated population was 137.