The Bugey (French pronunciation: [byʒɛ], [byʒe]; Arpitan: Bugê) is a historical region in the department of Ain , eastern France, located between Lyon and Geneva . It is located in a loop of the Rhône River in the southeast of the department. It includes the foothills of the Jura mountains, and the highest point is the Grand Colombier. Bugey is divided into two sub-regions: Haut Bugey and Bas Bugey. The inhabitants of Bugey are known as Bugistes or alternatively as Bugeysiens.

The Bugey was a fief of the Holy Roman Empire.