is a city in Lawrence County, Missouri, United States. The population was 2,113 at the 2000 census. On March 12, 2006, a tornado hit the town, destroying houses and killing two people. It was rated as an F3.
According to the United States Census Bureau, the city has a total area of 1.4 square miles (3.6 km²), all of it land.
Marionville has a population of white squirrels, which is one of a handful of such populations in the United States. They can be seen in yards near the Ozarks Methodist Manor.