| Official Name: | Powder Horn, Wyoming |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Wyoming#USA |
| Pushpin Label: | Powder Horn |
| Coordinates: | 44.6911°N -106.9728°W |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Wyoming |
| Subdivision Type2: | County |
| Subdivision Name2: | Sheridan |
| Area Footnotes: | [1] |
| Area Total Km2: | 4.96 |
| Area Land Km2: | 4.96 |
| Area Water Km2: | 0.0 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population: | 682 |
| Timezone: | Mountain (MST) |
| Utc Offset: | -7 |
| Timezone Dst: | MDT |
| Utc Offset Dst: | -6 |
| Elevation Ft: | 4045 |
| Postal Code Type: | ZIP Code |
| Postal Code: | 82801 (Sheridan) |
| Area Code: | 307 |
| Blank Name: | FIPS code |
| Blank Info: | 55-62269 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2807542 |
Powder Horn is a golf course community and census-designated place (CDP) in Sheridan County, Wyoming, United States. As of the 2020 census, it had a population of 682.[2]
The community is in south-central Sheridan County, bordered to the southwest by Big Horn and 7miles south of Sheridan, the county seat. The community is in the valley of Little Goose Creek, which flows north to join Big Goose Creek in Sheridan, forming Goose Creek, which in turn is a north-flowing tributary of the Tongue River, leading to the Yellowstone River in Montana.