Raspberry Island is an island of the Kodiak Archipelago located in the Gulf of Alaska in the U.S. state of Alaska. It is located two miles northwest of Whale Island, and just across the mile-wide Raspberry Strait from the southwestern end of Afognak. The island is separated from Kodiak Island by the Kupreanof Strait, with the Shelikof Strait to the northwest. Raspberry Island is 18 miles (29 km) long with a width that varies from 3 miles (4.8 km) to 8 miles (12.9 km).