Gelston

Gelston may refer to:


 * Gelston, Dumfries and Galloway, a hamlet in Scotland
 * Gelston, Lincolnshire, a village in England
 * David Gelston (1744–1828), an American merchant and politician
 * Gelston Castle in Jordanville, New York, in the United States
 * Gelston Castle, a listed building in Kelton, Dumfries and Galloway, in Scotland