| Official Name: | Horse Heaven, Washington |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | USA Washington Benton County |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Washington |
| Subdivision Type2: | County |
| Subdivision Name2: | Benton |
| Timezone: | Pacific (PST) |
| Utc Offset: | -8 |
| Timezone Dst: | PDT |
| Utc Offset Dst: | -7 |
| Elevation Footnotes: | [1] |
| Elevation M: | 362 |
| Elevation Ft: | 1188 |
| Population Footnotes: | [2] |
| Population As Of: | 2010 |
| Coordinates: | 46.0999°N -119.5361°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 99350 |
| Area Code: | 509 |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1514778 |
Horse Heaven was an unincorporated community in Benton County, Washington, United States, located approximately 13 miles southeast of Prosser in Carter Canyon. The original community site has been abandoned, and most of it no longer remains.
The community, originally known as Bedrock Spring, is located in the Horse Heaven Hills which, according to tradition, were named by James Gordon Kinney. The surrounding hills, once replete with wild horses, were frequently covered with "a perfect sea of the finest bunch-grass".[3]
Horse Heaven had a post office from 1903 to 1932, before travel to nearby Prosser became more common and practical for conducting business.[3]