| Official Name: | Ancasti |
| Pushpin Map: | Argentina |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Argentina |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Catamarca |
| Subdivision Type2: | Department |
| Subdivision Name2: | Ancasti |
| Subdivision Type3: | 2nd level Municipality |
| Subdivision Name3: | Ancasti |
| Established Title: | Founded |
| Established Date: | September 26, 1735 |
| Population Total: | 305 |
| Coordinates: | -27.8167°N -95°W |
| Elevation M: | 870 |
| Postal Code Type: | CPA Base |
| Postal Code: | K 4701 |
| Area Code: | +54 3833 |
Ancasti or Villa Ancasti is a town in Catamarca Province, Argentina. It is the head town of the Ancasti Department.It was founded in 1735, by Don Pedro Pablo Acosta.[1] The festival of the patron saint is celebrated annually on Christmas Eve, December 24.[2]
The main trades in the local economy are agriculture and cattle farming. The biggest produce are maize, potato and squash.