Les Breuleux is a municipality in the district of Franches-Montagnes in the canton of Jura in Switzerland. On 1 January 2023 the former municip…Les Breuleux is a municipality in the district of Franches-Montagnes in the canton of Jura in Switzerland. On 1 January 2023 the former municipality of La Chaux-des-Breuleux merged to form the municipality of Les Breuleux.