Williamsburg is a home rule-class city in and the county seat of Whitley County, on the southeastern border of Kentucky, United States. The population was 5,326 at the 2020 census. Developed along the Cumberland River, the city was founded in 1818 and named after William Whitley.

Whitley County is a county located in the southeastern part of the U.S. state of Kentucky. As of the 2020 census, the population was 36,712. Its county seat is at Williamsburg, though the largest city is Corbin, and the county's District Court sits in both cities. Whitley County is included in the London, KY Micropolitan Statistical Area.