Tmassa
| Tmassa | |
|---|---|
| Town | |
| Coordinates: 26°22′N 15°48′E / 26.367°N 15.800°E | |
| Country | Libya | 
| Region | Fezzan | 
| District | Murzuq | 
| Time zone | UTC+2 (EET) | 
Tmassa is a small town in the Sahara Desert of central Libya about 482 kilometres (300 mi) from the Gulf of Sidra. It lies about 161 kilometres (100 mi) south-east of Sabha. Its population is 500.