Ouachita may refer to:

Places In the United States: Ouachita, Arkansas, an unincorporated community Ouachita City, Louisiana, an unincorporated community The Ouachita Mountains in Arkansas and Oklahoma The Ouachita orogeny, the geologic event that raised the Ouachita Mountains The Ouachita River in Arkansas and Louisiana Lake Ouachita Ouachita County, Arkansas Ouachita Parish, Louisiana Ouachita National Forest in Arkansas and Oklahoma Ouachita National Recreation Trail in Arkansas and Oklahoma

Native Americans The Ouachita people, a Caddo group from northeastern Louisiana

Education Ouachita Baptist University, a private liberal arts institution in Arkansas Ouachita Hills College, a missionary training college in southwest Arkansas

Business Ouachita Railroad, a Class III short-line railroad headquartered in Arkansas Ouachita Electric Cooperative, a rural electric utility cooperative

Nature Ouachita creekshell, a species of mussel Ouachita darter, a species of darter Ouachita dusky salamander, a species of salamander Ouachita madtom, a species of catfish Ouachita map turtle, a species of turtle Ouachita pebblesnail, a species of snail Ouachita rock pocketbook, another species of mussel Ouachita shiner, a species of minnow Ouachita streambed salamander, another species of salamander Ouachita burrowing crayfish Ouachita fencing crayfish Ouachita mountain crayfish Ouachita river crayfish

See also Wichita (disambiguation) Washita (disambiguation)