Hestur (Danish:Hestø) is an island in the central Faroe Islands, to the west of Streymoy and the south of Koltur. Hestur means horse in Faroese.

On the west coast is a guillemot colony. In the north there is moorland with four small lakes, of which Fagradalsvatn is the largest. At Hælur, Hestur's southernmost tip, there is a lighthouse. The island has one settlement, a village also named Hestur on the east coast. The village enjoys the view over Gamlarætt and Velbastaður on Streymoy.