Geneva County is a county of the U.S. state of Alabama. As of 2000 the population was 25,764. Its county seat is Geneva. Geneva County is a prohibition or dry county.The county was named after its county seat, which in turn was named after Geneva, New York which was named after Geneva, Switzerland, by Walter H. Yonge, an early town resident and Swiss native. Geneva County is part of the Dothan, Alabama, Metropolitan Statistical Area.

Geneva County was established on December 26, 1868. The county was declared a disaster area in September 1979 due to damage from Hurricane Frederic. On March 10, 2009, a gunman named Michael McLendon went on a mass shooting spree at 9 locations in Geneva County from the town of Samson to the city of Geneva killing 11 people and wounding over 15.