Crețu River may refer to:

Crețu, a tributary of the Șercaia in Brașov County, Romania Crețu, a tributary of the Moneasa in Arad County, Romania Izvorul Crețu River, right tributary of the river Someșul Mare in Bistrița-Năsăud County, Romania

See also Crețu, a village in Dâmbovița County, Romania Crețu (surname)