Gassaway is a town in Braxton County, West Virginia, United States. The population was 769 at the 2020 census. Gassaway was incorporated in 1905 and named for Henry Gassaway Davis, the Democratic Party's nominee for Vice President of the United States in 1904. The center of population of West Virginia is located approximately 7 miles (11 km) north of Gassaway.

Braxton County is a county in the central part of the U.S. state of West Virginia. As of the 2020 census, the population was 12,447. The county seat is Sutton. The county was formed in 1836 from parts of Lewis, Kanawha, and Nicholas counties and named for Carter Braxton, a Virginia statesman and signer of the Declaration of Independence.