Reyesano, or Chirigua (Chiriba), is a nearly extinct Tacanan language that was spoken by only a few speakers, including children, in 1961 in Bolivia.

Such is the margination of the indigenous people in the Beni that very little Reyesano words have entered the popular criollo Spanish, very unlike the situation in Quechua and Aymara influenced areas.

[citation needed] Evidently the name Reyesano comes from the name of the town of Reyes, of the José Ballivián Province in the Department of the Beni in the plains adjacent to the Bolivian Amazon.

The language is also known as Sapiboca (Sapibocona), Maropa, Chumana, and perhaps Warisa (Guariza); these may have corresponded to different dialects.

Voiced sounds /b, dʐ/ are heard as prenasal [ᵐb, ᶯdʐ] in word-initial positions.