JPN is the ISO 3166-1 alpha-3 and UNDP country code for Japan.
JPN may also refer to: jpn, ISO 639-2 and ISO 639-3 code for Japanese language JPN (album), a 2011 album by Perfume Toyota JPN Taxi, a hatchback car by Toyota Motor Corporation used as a taxi in Japan and other countries in East Asia Pentagon Army Heliport in Arlington County, Virginia (FAA location identifier JPN)