Josefův Důl (German: Josefsthal) is a village and municipality in the Jablonec nad Nisou District of the Liberec Region in the Czech Republic. The municipality covers an area of 22km2 and, as of 2006, it had a population of 1021. It is located at 625m above sea level in the Valley of the Kamenice river (German: Kamnitz) in the southeastern part of the Jizera Mountains (German: Isergebirge). Above the town 2.5km lies the Kamenice river that is collected by the Josefův Důl dam. Just 8km south-west sits the town of Jablonec nad Nisou.
