Opelousa
| Indian village north of Opelousas on 1820 map of Louisiana may be associated with the Appalousa people (LCCN 2013593202) | |
| Total population | |
|---|---|
| extinct as a tribe, likely merged into the Atakapa in the early 19th century | |
| Regions with significant populations | |
| central-southwest Louisiana | |
| Languages | |
| unattested | |
| Religion | |
| Indigenous religion | |
| Related ethnic groups | |
| Atakapa | 
The Opelousa (also Appalousa) were an Indigenous people of the Southeastern Woodlands in Louisiana. They lived near present-day Opelousas, Louisiana, west of the lower Mississippi River, in the 18th century. At various times, they allied with the neighboring Atakapa and Chitimacha peoples.