Sangarius (/sæŋˈɡɛriəs/; Ancient Greek: Σαγγάριος) was a Phrygian river-god of Greek mythology. He is described as the son of Oceanus and Tethys and as the husband of Metope, by whom he became the father of Hecuba. He is also the father of Nana and therefore the grandfather of Attis. The Sakarya River (in Phrygia-Turkey) itself is said to have derived its name from one Sangas, who had offended Rhea and was punished by her by being changed into water.
This article incorporates text from a publication now in the public domain: Smith, William, ed. (1870). "Sangarius". Dictionary of Greek and Roman Biography and Mythology.