Banja can refer to:
- Banja (woreda), an administrative division of the Amhara Region, Ethiopia
- Banja, Aranđelovac, a village in Serbia
- Banja (Priboj), a village in Serbia
- Banja, Split-Dalmatia County, a village near Vrgorac, Croatia
- Banja, Dubrovnik-Neretva County, a village near Ploče, Croatia
- Banja, Macedonia, a village in Češinovo-Obleševo Municipality, Republic of Macedonia
- Various toponyms named Banja meaning spa, see All pages beginning with "Banja"