OK-Supreme
| Industry | Manufacturing and engineering |
|---|---|
| Founded | 1882 |
| Defunct | 1939 |
| Fate | Wound up |
| Headquarters | Birmingham, UK |
Key people | Ernie Humphries and Charles Dawes |
| Products | Motorcycles |
OK-Supreme was a British motorcycle manufacturer from 1899 to 1939 located in Birmingham. Grass-track racing versions of the machines continued to be available until 1946.