Japan Monkey Park, Amusement park in Inuyama, Japan

Japan Monkey Park is a recreational complex in the city of Inuyama, Aichi Prefecture, combining carnival-style rides with live exhibits featuring different species of primates. The site covers multiple levels on a forested hillside, offering both mechanical attractions and viewing zones where monkeys live in semi-natural enclosures.

The site began as the Meitetsu-planned Inuyama Nature Park in 1952; the central Haku-san-daira area was levelled by 1955 and named Picnic Land, hosting expositions in 1956, 1957 and 1959. Rides such as teacups, a merry-go-round and a flying tower were installed in 1959–60, and year-round operation as Inuyama Line Park started in May 1960. It was renamed Japan Monkey Park in 1980, and the adjoining Japan Monkey Centre became a separate foundation in 2014.

The park's nickname is "Monpa", and its mascots Monpa-kun and Monpii-chan debuted on 11 March 2006, appearing in costumes that change monthly, from New Year kimono to a December Santa outfit. The adjoining Japan Monkey Center, long run with shared admission, became a separate public-interest foundation in 2014, and admission has been charged separately since 1 April 2014.

The grounds sit on a hillside, so comfortable shoes and readiness for inclines are helpful for navigating the pathways. On warm days, arriving early allows time to visit the animal enclosures before midday heat.

The roller coasters and carnival rides share the space with several species of monkeys housed in open-air habitats visible throughout the day. Some of the walking paths pass directly alongside primate enclosures, allowing guests to pause between attractions and watch the animals up close.