Boca do Acre (Mouth of Acre) is a municipality located in the Brazilian state of Amazonas. Its population was 34,635 (2020) and its area is 22,349 km2. The municipality holds 92% of the 311,000 hectares (770,000 acres) Mapiá-Inauini National Forest, created in 1989. It also contains the 133,637 hectares (330,220 acres) Arapixi Extractive Reserve, created in 2006.