Dexter is a city in Dexter Township, Mower County, Minnesota, United States. The population was 341 at the 2010 census.
The community was named for Dexter Parrity, an early settler. It was platted in 1874 and incorporated in 1878.
According to the United States Census Bureau, the city has a total area of 1.5 square miles (3.8 km²), all of it land.