Jennings is a town in Pawnee County, Oklahoma, United States. The population was 373 at the 2000 census.
Jennings is located at 36°10′50″N 96°34′11″W / 36.18056°N 96.56972°W / 36.18056; -96.56972 (36.180666, -96.569623). According to the United States Census Bureau, the town has a total area of 0.6 square miles (1.5 km²), all of it land.
As of the census of 2000, there were 373 people, 140 households, and 102 families residing in the town. The population density was 671.6 people per square mile (257.2/km²). There were 173 housing units at an average density of 311.5 per square mile (119.3/km²). The racial makeup of the town was 84.72% White, 11.80% Native American, 0.27% Pacific Islander, and 3.22% from two or more races. Hispanic or Latino of any race were 0.27% of the population.