Robert Williams was an American politician who served as the fourth adjutant general of North Carolina from 1812 to 1821. A member of the Democratic-Republican Party, he previously served as the third governor of Mississippi Territory from 1805 to 1809 under President Thomas Jefferson and represented North Carolina in the U.S. House of Representatives from 1797 to 1803.

The Territory of Mississippi was an organized incorporated territory of the United States that was created under an organic act signed into law by President John Adams on April 7, 1798. It was dissolved on December 10, 1817, when the western half of the territory was admitted to the Union as the State of Mississippi. The eastern half was redesignated as the Alabama Territory; it was admitted to the Union as the State of Alabama on December 14, 1819. The Chattahoochee River played a significant role in the definition of the territory's borders. The population increased in the early 1800s from settlement, with cotton being an important cash crop.