| Maritsauá | |
| Region: | Brazil |
| Extinct: | First half of the twentieth century |
| Ref: | e25 |
| Familycolor: | American |
| Fam1: | Tupian |
| Fam2: | Yuruna |
| Iso3: | msp |
| Linglist: | msp.html |
| Glotto: | mari1442 |
| Glottorefname: | Maritsauá |
Maritsauá (Manitsawá) is an extinct Tupian language of the state of Mato Grosso, in the Amazon region of Brazil.