Mize is a town in Smith County, Mississippi, United States. The population was 285 at the 2000 census. On April 6, 2005, an F-3 tornado struck Mize High School. The school's second floor was ripped off by sheer force of wind and the entire structure was severely damaged. Re-construction efforts were completed in 2007. Football player Eugene Sims is a native of Mize.
Mize is located at 31°52′2″N 89°33′16″W / 31.86722°N 89.55444°W / 31.86722; -89.55444 (31.867332, -89.554331).
According to the United States Census Bureau, the town has a total area of 2.3 square miles (6.0 km²), all of it land.