| Official Name: | Hamburg, California |
| Pushpin Map: | California#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | California |
| Subdivision Type2: | County |
| Subdivision Name2: | Siskiyou |
| Population As Of: | 2019 |
| Population Footnotes: | [1] |
| Population Total: | 80 |
| Timezone: | Pacific (PST) |
| Utc Offset: | -8 |
| Timezone Dst: | PDT |
| Utc Offset Dst: | -7 |
| Elevation Ft: | 1617 |
| Coordinates: | 41.7828°N -123.0603°W |
| Area Code: | 530 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 261041 |
Hamburg (formerly Hamburg Bar)f[2] is an unincorporated community in Siskiyou County, California, United States. The community is along the Klamath River and California State Route 96 west of Yreka,[3] just downstream from the confluence of the Scott and Klamath Rivers.
Hamburg was an important mining town in the 1850s, with several businesses including saloons and stores. A few private residences remain in the area today.