McMinnville is the largest city in and the county seat of Warren County, Tennessee, United States. The population was 13,788 at the 2020 census. It was named after Governor Joseph McMinn.

Warren County is a county located on the Cumberland Plateau in Middle Tennessee, one of the three Grand Divisions of the U.S. state of Tennessee. As of the 2020 census, the population was 40,953. Its county seat is McMinnville. Warren County comprises the McMinnville, TN Micropolitan Statistical Area.