Wadj-wer, also spelled Uatch-ur is an Egyptian god of fertility and the personification of the Mediterranean Sea, whose name means the "great green". He also symbolizes the richness of the waters of the Nile Delta.
The earliest known attestation of Wadj-wer is dated back to the 5th Dynasty, in the mortuary temple of the pyramid of Sahure, at Abusir; here he appears similar to the god Hapi, but with his body filled by water ripples. He also appears on the walls of the much later (20th Dynasty) tomb QV55 of prince Amunherkhepeshef, son of pharaoh Ramesses III.