Polvijärvi (; literally "knee lake") is a municipality of Finland. It is located in the North Karelia region. The municipality has a population of () and covers an area of of which is water. The population density is . Neighbouring municipalities are Juuka, Kaavi, Kontiolahti, Liperi Outokumpu. The municipality is unilingually Finnish. Polvijärvi is established in 1876. Notable people Heikki Soininen (1891–1957) Vilho Turunen (1923–1973) Jouni Kortelainen (born 1957) Annikka Mutanen (born 1965) References External links Municipality of Polvijärvi – Official website Populated places established in 1876 1876 establishments in Finland