| Trois-Villes | |
| Native Name: | Iruri |
| Commune Status: | Commune |
| Arrondissement: | Oloron-Sainte-Marie |
| Canton: | Montagne Basque |
| Insee: | 64537 |
| Postal Code: | 64470 |
| Mayor: | Jean Etchemendy[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Pays Basque |
| Coordinates: | 43.1342°N -0.8756°W |
| Elevation M: | 300 |
| Elevation Min M: | 195 |
| Elevation Max M: | 793 |
| Area Km2: | 6.39 |
Trois-Villes (pronounced as /fr/; literally "Three Cities";)[2] is a commune in the department of Pyrénées-Atlantiques in the Nouvelle-Aquitaine Region of south-western France.
The French military officer Comte de Troisville was a major landowner in this village.
It is located in the former province of Soule.[2]