Euprepiophis is a genus of nonvenomous colubrid snakes, containing three species of Asian rat snakes which were formerly assigned to the genus Elaphe. They were separated from Elaphe in 2002 by Utiger et al. following evidence from DNA analysis. They are true rat snakes but are not as closely related to other European, Asian, or North American rat snakes as their former place in Elaphe might suggest.