Lewisburg is a city in Greenbrier County, West Virginia, United States. The population was 3,830 at the 2010 census. It is the county seat of Greenbrier County.
Lewisburg is located at 37°48′15″N 80°26′25″W / 37.80417°N 80.44028°W / 37.80417; -80.44028 (37.804076, -80.440408).
According to the United States Census Bureau, the city has a total area of 3.8 square miles (9.9 km²), all of it land. Much of it is within the karst belt and a sinkhole is gated over at an intersection. It is part of the Davis Spring subwatershed, site of the state's largest spring with a daily output of one million gallons.