Little Missouri River (Arkansas)
General data
- Name: Little Missouri River (Arkansas)
- Water system: Atchafalaya River
- Water type: River
- Progression: Ouachita River -> Black River (Red River tributary) -> Red River of the South -> Atchafalaya River -> Gulf of Mexico -> Atlantic Ocean -> Planet Earth
- Climates: Continental
- Continents: North America
- Countries: United States of America
The Little Missouri River in Arkansas is a tributary of the Ouachita River. It originates in the Ouachita Mountains of southwestern Arkansas and flows southeast to join the Ouachita River approximately 27 miles above Camden.