Kivijärvi is a municipality of Finland.

It is located in the province of Western Finland and is part of the Central Finland region. The municipality has a population of 1,225 (30 June 2015) and covers an area of 599.86 square kilometres (231.61 sq mi) of which 115.81 km (44.71 sq mi) is water. There are all together****lakes in Kivijärvi. Biggest lakes are Kivijärvi, Heitjärvi and Heikinjärvi. The population density is 2.53 inhabitants per square kilometre (6.6/sq mi). Salamajärvi National Park is partly located in Kivijärvi.