MPK may refer to: Politics and government Minjoo Party of Korea Majlis Perbandaran Klang, the municipal council of Klang, Malaysia (MPK), National Defence Training Association of Finland, a Finnish government-organised voluntary military training organisation Science, technology and engineering Martian Piloted Complex or MPK, Soviet-era concept for a human mission to Mars Memory protection key, a mechanism to divide computer memory .mpk, a filename extension used by Nintendo 64 emulators Methyl propyl ketone, a colorless liquid ketone MPK, the short version of the Walther MP submachine gun Transportation Mokpo Airport (IATA airport code), Mokpo, South Korea Moorpark (Amtrak station), an Amtrak and Metrolink rail station in California, US Mosspark railway station, a First ScotRail station on Paisley Canal Line, Scotland Merinda Park railway station, a station in Melbourne, Australia Other uses Magpakailanman, a Philippine drama anthology program broadcast by GMA Network Maine Pyar Kiya, a 1989 Bollywood film Marginal product of capital, in economics Menlo Park, California, United States See also MP5K, a Heckler & Koch submachine Gun