- Language: Katawixi
- Alternate names: Catauisi, Catauichí, Catawixi, Catauixi, Catawishi, Catauichi, Hewadie, Katawishi, Katawishí, Katawishi, Quatausi
- Language code: xat
- Language family: Katukinan (SIL classification)
- Number of speakers: 0?
- Vulnerability: Dormant
Isolated group. Last report of contact was in 1997. Continuing existence in doubt.
Katawixi is spoken in Brazil, South America.