The North Amuj River (Zjadwg: Nwatju Mwatja [ˈnwa.ʧɨ ˈmwa.ʧa], Vidish: Nordamijō [ˈnor.da.mi.joː]) is a body of water connected to the Amujan Sea which splits Amujton and Pfoas away from Ongashaw.