Les Genevez is a municipality in the district of Franches-Montagnes in the canton of Jura in Switzerland. Les Genevez is first mentioned in 1381 as Les Geneveys. Les Genevez has an area of . Of this area, or 53.8% is used for agricultural purposes, while or 41.4% is forested. Of the rest of the land, or 3.6% is settled (buildings or roads), or 0.1% is either rivers or lakes and or 1.0% is unproductive land. Of the built up area, housing and buildings made up 2.1% and transportation infrastructure made up 1.2%. Out of the forested land, 36.3% of the total land area is heavily forested and 5.1% is covered with orchards or small clusters of trees. Of the agricultural land, 12.6% is used for growing crops and 24.8% is pastures and 16.3% is used for alpine pastures. All the water in the municipality is flowing water. The municipality is located in the Franches-Montagnes district. It consists of the village of Les Genevez and a number of hamlets of including Le Prédame and Les Vacheries. The municipalities of Le Bémont, Les Bois, Les Breuleux, La Chaux-des-Breuleux, Les Enfers, Les Genevez (JU), Lajoux, Montfaucon, Muriaux, Le Noirmont, Saignelégier, Saint-Brais and Soubey are considering a merger on at a date in the future into the new municipality of Franches-Montagnes. The blazon of the municipal coat of arms is Or, a Rooster's head erased Gules. Les Genevez has a population () of . , 7.4% of the population are resident foreign nationals. Over the last 10 years (2000–2010) the population has changed at a rate of 1.9%. Migration accounted for -1.4%, while births and deaths accounted for 2.3%. Most of the population () speaks French (488 or 94.6%) as their first language, German is the second most common (24 or 4.7%) and Italian is the third (2 or 0.4%). the population was 52.0% male and 48.0% female. The population was made up of 256 Swiss men (47.9% of the population) and 22 (4.1%) non-Swiss men. There were 230 Swiss women (43.0%) and 27 (5.0%) non-Swiss women. Of the population in the municipality, 278 or about 53.