Porcu may refer to:

rivers in Romania: Porcu, a tributary of the Bâsculița in Buzău County Valea Porcului, a tributary of the Sădurel in Sibiu County Porcu, a tributary of the Tărâia in Gorj County Porcu (Jiu), a tributary of the Jiu in Gorj County

See also Porcula, a genus of Suidae Porcus (disambiguation)