| Foster | |
| Pushpin Map: | Minnesota#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Minnesota |
| Subdivision Type2: | County |
| Subdivision Name2: | Big Stone |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 997 |
| Coordinates: | 45.4164°N -96.6758°W |
| Area Code: | 320 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 643834 |
Foster is an unincorporated community in Foster Township, Big Stone, Minnesota, United States.
Foster was platted in 1880. It was named for Foster L. Balch.[1]