Wister is a town in Le Flore County, Oklahoma, United States. It is part of the Fort Smith, Arkansas-Oklahoma Metropolitan Statistical Area. The population was 1,002 at the 2000 census.
Wister is located at 34°58′6″N 94°43′23″W / 34.96833°N 94.72306°W / 34.96833; -94.72306 (34.968411, -94.723191).
According to the United States Census Bureau, the town has a total area of 1.5 square miles (3.8 km²), of which, 1.4 square miles (3.7 km²) of it is land and 0.04 square miles (0.1 km²) of it (2.04%) is water.