Rautavaara is a municipality of Finland. It is located in the Northern Savoniaregion. The municipality has a population of 1,424 (31 December 2023) and covers an area of 1,235.26 square kilometres (476.94 sq mi) of which 84.09 km (32.47 sq mi) is water. The population density is 1.24 inhabitants per square kilometre (3.2/sq mi). The municipality is unilinguallyFinnish.