| Lasse | |
| Native Name: | Lasa |
| Commune Status: | Commune |
| Arrondissement: | Bayonne |
| Canton: | Montagne Basque |
| Insee: | 64322 |
| Postal Code: | 64220 |
| Mayor: | Michel Idiart[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Pays Basque |
| Coordinates: | 43.1581°N -1.2589°W |
| Elevation M: | 220 |
| Elevation Min M: | 176 |
| Elevation Max M: | 1247 |
| Area Km2: | 14.79 |
Lasse (pronounced as /fr/; eu|Lasa)[2] is a commune in the Pyrénées-Atlantiques department in south-western France.