| Cawishana | |
| Nativename: | Kaixana |
| States: | Brazil |
| Extinct: | mid-20th century |
| Familycolor: | American |
| Fam1: | Arawakan |
| Fam2: | Northern |
| Fam3: | Upper Amazon |
| Fam4: | Manao |
| Iso3: | none |
| Linglist: | qsw |
| Glotto: | kais1242 |
| Glottorefname: | Kaishana |
Cawishana (Kawishana, Kayuwishana)[1] is an Arawakan language, presumably extinct, of Brazil. A few speakers were reported in the 1950s, and today only one person can speak it.
Aikhenvald (1999) classifies it as a Middle Rio Negro, North Amazonian language, along with Shiriana and Manao.
Kaufman (1994) had placed it in a branch of Western Nawiki Upper Amazonian along with two long-extinct languages, Jumana (Yumana) and Pasé, which Aikhenvald leaves unclassified. It had an active–stative syntax.
Ruhlen (1987) classified it as a Rio Negro language, along with Yumana, Pasé and Manao.[2]