Mikkeli (Swedish: S:t Michel official writing, short for Sankt Michel) is a town and municipality in Finland. It is located in what used to be the province of Eastern Finland and is part of the Etelä-Savo region. The municipality has a population of 54,390 (31 August 2017) (around 34,000 in the town itself) and covers an area of 3,229.57 square kilometres (1,246.94 sq mi) of which 424.7 km2 (164.0 sq mi) is water. The population density is 32 inhabitants per square kilometre (83/sq mi) .
Mikkeli was the site for the headquarters of the Finnish armed forces during World War II. In recognition of this, the town's coat of arms incorporates a pair of crossed Marshal's batons, and the town was awarded the Cross of Liberty, 4th class, to be displayed with the coat of arms.