Yapahu was a mayor/ruler of the city/city-state of Gazru (modern Gezer) of the 1350-1335 BC Amarna letters correspondence. Two other mayors of Gazru during the Amarna letters period, were Adda-danu and Milkilu.
Yapahu is the author of five Amarna letters to the pharaoh of Egypt, EA 297-300, and EA 378, (EA for 'el Amarna').