Bolvir is a village and municipality in the province of Girona, in the autonomous community of Catalonia, Spain. It is located in the comarca of Cerdanya, in the Pyrenees near the French border.
The municipality covers an area of 10.34 square kilometres (3.99 square miles) and has a population of 493. It is one of the smaller municipalities in the Cerdanya valley, a traditional Catalan comarca whose territory is divided between Spain and France.
Bolvir is known for its mountain setting and for the Romanesque church of Sant Bartomeu, which dates from the medieval period. The village lies close to the larger town of Puigcerdà, the historic capital of Cerdanya.