Maaninka (Swedish: Maaninka, also Maninga) is a former municipality in the region of North Savo, in Finland. It was merged with the city of Kuopio on 1 January 2015.

The municipality had a population of 3,747 (30 November 2014) and it covered an area of 575.13 square kilometres (222.06 sq mi) of which 108.62 square kilometres (41.94 sq mi) was water. The population density was 8.03 inhabitants per square kilometre (20.8/sq mi).

The municipality is mostly rugged forestland. The tallest waterfall in Finland, at 36 metres (118 ft) high, is located in Maaninka. The site, called Korkeakoski, has been a tourist site since the 19th century.

The municipality was unilingually Finnish.