| Official Name: | Glad Valley, 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: | Ziebach |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 2464 |
| Coordinates: | 45.3992°N -101.7778°W |
| Area Code: | 605 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1255253 |
Glad Valley is an unincorporated community in Ziebach County, South Dakota, United States. Glad Valley is located on South Dakota Highway 20, 17miles west of Isabel.
Glad Valley was laid out in 1926, and named for the nearby Glad Valley Ranch.[1]