Amdang AKA Biltine (autonym: sìmí amdangtí) is a language closely related to Fur, which together constitute a branch of the Nilo-Saharan family. It is mainly spoken in Chad north of Biltine, and sporadically elsewhere in Ouaddaï. There are also small colonies of speakers in Darfur near Woda'a and Fafa, and in Kordofan in the Abu Daza district and at Magrur north of Bara.