KPO may refer to: KPO, former call sign of San Francisco radio station KNBR (AM) (Communist Party of Austria), an Austrian political party ) (Communist Party of Germany (Opposition) (1928–1940), former German political party Knight of the Pian Order (Order of Pope Pius IX), lowest rank in that papal order of knighthood Knowledge process outsourcing, a business practice Ku-ring-gai Philharmonic Orchestra, an amateur orchestra in New South Wales, Australia KPO, IATA code for Pohang Airport, South Korea Karachaganak Petroleum Operating, operator of the Karachaganak Field in Kazakhstan