The Farah River (Pashto: د فراه سیند; Persian: فراه رود) is a river in western Afghanistan. The river originates in the Band-e Bayan Range in the eastern part of Ghor Province, and flows for 560 km to the Helmand swamps on the Afghanistan-Iran border. The city of Farah is located on the river, where in the dry season, it has a width of around 140 metres and a depth of around 60 cm. The lower valley of the Farah Rud is fertile and well cultivated.
- Chisholm, Hugh, ed. (1911). Encyclopædia Britannica. 10 (11th ed.). Cambridge University Press. p. 175. .