La Chaux-des-Breuleux (French pronunciation: [la ʃo de bʁœlø]) is a former 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 .

La Chaux-des-Breuleux is first mentioned in 1397 as La Chaux.

La Chaux-des-Breuleux has an area of 4.05 km2 (1.56 sq mi). Of this area, 2.86 km2 (1.10 sq mi) or 70.6% is used for agricultural purposes, while 0.94 km2 (0.36 sq mi) or 23.2% is forested. Of the rest of the land, 0.14 km2 (35 acres) or 3.5% is settled (buildings or roads), 0.01 km2 (2.5 acres) or 0.2% is either rivers or lakes and 0.12 km2 (30 acres) or 3.0% is unproductive land.