Warren County er navnet på 14 counties i USA. De er opkalder efter general Joseph Warren, som blev dræbt i slaget ved Bunker Hill i den amerikanske uafhængighedskrig:
Warren County, Georgia Warren County, Illinois Warren County, Indiana Warren County, Iowa Warren County, Kentucky Warren County, Mississippi Warren County, Missouri Warren County, New Jersey Warren County, New York Warren County, North Carolina Warren County, Ohio Warren County, Pennsylvania Warren County, Tennessee Warren County, Virginia