Where they are How many PA 351 (Siasi/Sesai, 2012)
- Linguistic family
According to the linguist Aryon Dall'Igna Rodrigues, in his book Línguas Brasileiras [Brazilian Languages] (São Paulo: Loyola, 1986), the Suruí speak the Akwáwa language, the same as the Asuriní of the Tocantins and the Parakanã. It belong to the Tupi-Guarani family, like the languages of the Tenetehára (name that groups the Guajajara and Tembé together), Tapirapé, Avá-Canoeiros, which are similar to it. Presently, the majority of the Suruí also speak Portuguese.