| Sankt Agatha | |
| Pushpin Map: | Austria |
| Pushpin Mapsize: | 270 |
| Pushpin Map Caption: | Location within Austria |
| Mapsize: | 260x260px |
| Coordinates: | 48.3861°N 13.8789°W |
| Subdivision Type: | Country |
| Subdivision Name: | Austria |
| Subdivision Type1: | State |
| Subdivision Name1: | Upper Austria |
| Subdivision Type2: | District |
| Subdivision Name2: | Grieskirchen |
| Parts Style: | para |
| Leader Title: | Mayor |
| Leader Name: | Franz Weissenböck |
| Elevation M: | 603 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Registration Plate: | GR |
| Postal Code Type: | Postal code |
| Postal Code: | 4084 |
| Area Code Type: | Area code |
| Area Code: | 07277 |
| Website: | www.st-agatha.at |
Sankt Agatha is a municipality in the district of Grieskirchen in the Austrian state of Upper Austria.
Sankt Agatha lies in the Hausruckviertel. About 30 percent of the municipality is forest, and 65 percent is farmland.