Rhebas (Ancient Greek: Ῥήβας) was a coastal town of ancient Bithynia located near the Euxine entrance to the Bosphorus, near the mouth of the Rhebas River.
Its site is tentatively located near Rıva in Asiatic Turkey.[1][2]
41°13′28″N 29°13′12″E / 41.22441°N 29.220059°E