KK Zenica Čelik (a.k.a. Omladinski košarkaški klub Čelik) is a Bosnian basketball team that competes in the Basketball Championship of Bosnia and Herzegovina. Formed in 1946, Zenica Čelik was champion of the Yugoslav second division (1. liga B) three times and played many years in the prestigious Yugoslav First Basketball League. At that time, first Yugoslav League was considered the best basketball league in Europe and the second best in the world, behind the NBA. In 1999, Zenica Čelik merged with Zenica Metalno.