Dorus was a figure in Greek mythology, usually considered a son of Hellen and the nymph Orseis. As such, he was considered the brother of Aeolus and Xuthus, and thus one of the progenitors of the Greek people.
Dorus is traditionally associated with the Dorian tribe or people, one of the four major ethnoi into which the ancient Greeks divided themselves (the others being the Aeolians, Achaeans, and Ionians). It was believed that the Dorians were descended from him and that he ruled over them. He is credited with giving his name to the Dorians and to the region of Doris in central Greece.
While Dorus is a significant figure in understanding the lineage and tribal divisions of the ancient Greeks, his role in mythology beyond this is minimal. He does not feature prominently in myths or heroic tales in the same way as his brothers or other figures of the Hellenic lineage. He is primarily important in genealogical and historical contexts, as a legendary ancestor and eponym.