Leisure Lake is an unincorporated community and census-designated place (CDP) in Grundy County, Missouri, United States. As of the 2020 census, the population was 166.
It is located in western Grundy County and consists of a residential community set round a reservoir named Leisure Lake. Missouri Route 146 forms the eastern and northern edge of the CDP and leads southeast to Trenton, the Grundy County seat.
According to the U.S. Census Bureau, the Leisure Lake CDP has a total area of , of which is land and , or 5.10%, is water.