| Official Name: | Chacao |
| Subdivision Type: | Region |
| Subdivision Name: | Los Lagos |
| Subdivision Type1: | Province |
| Subdivision Name1: | Chiloé |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Ancud |
| Subdivision Type3: | Commune |
| Subdivision Name3: | Ancud |
| Government Type: | Municipal |
| Leader Title: | Alcade |
| Established Date: | 1567 |
| Population As Of: | 2002 |
| Population Total: | 450 |
| Timezone: | Chilean Standard |
| Utc Offset: | −04:00 |
| Timezone Dst: | Chilean Daylight |
| Utc Offset Dst: | −03:00 |
| Coordinates: | -41.8278°N -73.5253°W |
| Area Code: | Country + town = 56 + 65 |
Chacao is a village (es|aldea) located at southern shore of Chacao Channel that separates Chiloé Island from the mainland. Chacao was established as a Spanish outpost with the name of San Antonio de Chacao in 1567 during the conquest of Chiloé.