Karitiâna or Caritiana is a Tupian language of the state of Rondônia, in the Amazon region of Brazil. Their reservation, demarcated by the Fundação Nacional do Indio (FUNAI) in 1977, consists of roughly 90,000 hectares of jungle. The majority of the Karitiana people live in one village at the northern edge of this reservation, located 90 km (by road) south of the state capital, Porto Velho.
The nasals /m n ɲ/ are prestopped[ᵇm ᵈn ᶡɲ] if they are preceded by an oral vowel, and poststopped[mᵇ nᵈ ɲᶡ] if they are followed by one. The velar nasal/ŋ/ is denasalized to [ɡ] before oral vowels in unstressed syllables, poststopped to [ŋᶢ] before oral vowels in stressed syllables, and prestopped [ᶢŋ] after oral vowels.
/h r j w/ are nasalized[h̃ r̃ w̃ ȷ̃] when surrounded by nasal vowels.