Dibru–Sadiya Railway
| Company type | Private | 
|---|---|
| Founded | 1881 | 
| Defunct | 1945 | 
| Headquarters | ,  British India  | 
Area served  | Dibrugarh and Tinsukia, Assam | 
| Services | Rail transport | 
Dibru–Sadiya Railway (DSR) was one of the pioneering railway companies in British India and the first railway service of Assam in north-east India.