| Tostat | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Tostat (65).svg |
| Arrondissement: | Tarbes |
| Canton: | Val d'Adour-Rustan-Madiranais |
| Insee: | 65446 |
| Postal Code: | 65140 |
| Mayor: | Bruno Mora[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Adour Madiran |
| Coordinates: | 43.3314°N 0.1039°W |
| Elevation M: | 252 |
| Elevation Min M: | 234 |
| Elevation Max M: | 254 |
| Area Km2: | 6.27 |
Tostat (in French pronounced as /tɔsta/; Occitan (post 1500);: Tostac) is a commune in the Hautes-Pyrénées department in south-western France.