Alta Floresta d’Oeste (Brazilian Portuguese: [ˈawtɐ floˈɾɛstɐ doˈɛstʃi]) is a municipality located in the Brazilian state of Rondônia. Its population was 22,728 (2020) and its area is 7,067 km.
It holds part of the 615,771 hectares (1,521,600 acres) Guaporé Biological Reserve, a strictly protected conservation unit.
