Châtillon-le-Duc is a commune located in the Doubs department in eastern France. It is part of the Bourgogne-Franche-Comté region and is situated near the city of Besançon. The area is known for its picturesque landscapes and historical architecture, making it a charming place to visit. The commune has a population of around 3,000 residents and features various amenities, including schools, shops, and parks. Châtillon-le-Duc is also well-connected by road and public transport, allowing easy access to nearby towns and attractions in the region.