| Official Name: | Eureka, 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: | Baker |
| Timezone: | Pacific (PST) |
| Utc Offset: | -8 |
| Timezone Dst: | PDT |
| Utc Offset Dst: | -7 |
| Coordinates: | 44.8185°N -118.2047°W |
Eureka is a ghost town in Baker County, Oregon, United States, located along Cracker Creek, approximately 5miles north of Sumpter, and 0.6miles from Bourne. It was originally founded as a mining camp 1892, though by 1945 operations had ceased.[1]