Giske is an island in Giske Municipality in Møre og Romsdal county, Norway. It covers an area of 2.67 square kilometers (1.03 sq mi). It is flat, with the highest point 23 meters (75 ft) above mean sea level. The island is connected by the Giske Bridge to the neighbouring island of Valderøya to the east and by the Godøy Tunnel to the island of Godøya to the southwest. Giske Church, dating back to the 12th century, sits on the southern coast of the island.

The small island contains the 0.75-square-kilometre (190-acre) village also named Giske. The village has a population (2018) of 800 and a population density of 1,067 inhabitants per square kilometre (2,760/sq mi). The rest of the island's residents are spread out around the village on farms.

• List of islands of Norway

• Media related to Giske (island) at Wikimedia Commons