Warren is a city in and the county seat of Bradley County, Arkansas, United States. As of the 2010 census, the population was 6,003.

Bradley County is a county located in the U.S. state of Arkansas. As of the 2020 census, the population was 10,545. The county seat is Warren. It is Arkansas's 43rd county, formed on December 18, 1840, and named for Captain Hugh Bradley, who fought in the War of 1812.