Kaavi is a municipality of Finland.It is located in the province of Eastern Finland and is part of the Northern Savonia region. Kaavi is also a part of historical Karelia. The municipality has a population of 3,235 (30 June 2015) and covers an area of 789.59 square kilometres (304.86 sq mi) of which 115.49 km2 (44.59 sq mi) is water. The population density is 4.8 inhabitants per square kilometre (12/sq mi).The municipality is unilingually Finnish.