| Official Name: | Thornberry, Oregon |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Oregon#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Oregon |
| Subdivision Type2: | County |
| Subdivision Name2: | Sherman |
| Timezone: | Pacific (PST) |
| Utc Offset: | -8 |
| Timezone Dst: | PDT |
| Utc Offset Dst: | -7 |
| Coordinates: | 45.6321°N -120.7632°W |
Thornberry is a former community in Sherman County, Oregon, United States, founded in 1916.[1] Formerly known as Grebe, Thornberry was named for Harvey B. Thornberry, who became the second postmaster in January 1919.[1] The town post office was officially closed in November 1923.[1] Thornberry is contemporarily considered a ghost town.[2]