| Official Name: | Keyapaha, South Dakota |
| Pushpin Map: | South Dakota |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | South Dakota |
| Subdivision Type2: | County |
| Subdivision Name2: | Tripp |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 2300 |
| Coordinates: | 43.1094°N -100.1378°W |
| Area Code: | 605 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1261116[1] |
Keyapaha is an unincorporated community in Tripp County, South Dakota, United States. Keyapaha is southwest of Colome and south of New Witten.
The community took its name from the Keya Paha River.[2] The name "Keya Paha" is taken from the Sioux language; literally translated, it means "turtle hill".[3]