Questembert is a commune in the Morbihan department in the region of Brittany in north-western France. It is located in the center of the department, about 30 kilometers south-east of Vannes. The commune has a population of around 10,000 people and is known for its rich history, including the ruins of a 12th-century castle, and its natural beauty, with several forests and lakes in the surrounding area. Questembert is also home to a number of cultural and recreational facilities, including a public swimming pool, a sports complex, and a music school.