Creek National Capitol, also known as Creek Council House, is a building in downtown Okmulgee, Oklahoma.  It was capitol of the Muscogee (Creek) Nation nation from 1878 to 1907.  When Oklahoma became a state, the U.S. Department of the Interior sold the building to the City of Okmulgee.  Between 1907 and 1917, the city leased the building to the county, and it was used as the Okmulgee County Courthouse during that period. 

It was declared a National Historic Landmark in 1961.  

In 2010 the City of Okmulgee agreed to sell the building back to the tribe.   The building now houses the Creek Council House Museum, with artifacts and exhibits about the history of the Muscogee (Creek) people and Native American arts and crafts.