Oglala

Oglala can refer to the following:

The Oglala National Grassland of Nebraska.
Oglala is a town located in Shannon County, South Dakota.
USS Oglala is a U.S. Navy minelayer sunk in the battle of Pearl Harbor.
Oglala Sioux is a Sioux Nation sub-band of the Western division (the Lakota).
Ogallala Aquifer is an Aquifer (concentration of groundwater).