Wiru or Witu is the language spoken by the Wiru people of Ialibu-Pangia District of the Southern Highlands Province of Papua New Guinea. The language has been described by Harland Kerr, a missionary who lived in the Wiru community for many years. Kerr's work with the community produced a Wiru Bible translation and several unpublished dictionary manuscripts, as well as Kerr's Master's thesis on the structure of Wiru verbs.