Unclean may refer to:
Unclean animals, those whose consumption or handling is labeled a taboo Unclean food, in Jewish dietary custom Ritually impure, in various religions Unclean hands, a term in contract law Unclean (album), a 1998 album by Rorschach Test "Unclean" (song), from 1984 Unclean spirit, in Christianity Unclean vocals, in metal or punk music