- a canton of NW Switzerland, divided into the demicantons of Basle-Landschaft and Basle-Stadt . Pops.: 263 200 and 186 900 (2002 est). Areas: 427 sq km (165 sq miles) and 36 sq km (14 sq miles) respectively
- a city in NW Switzerland, capital of Basle canton, on the Rhine: oldest university in Switzerland. Pop: 165 000 (2002 est)