Larak Island (also Lark Island) is an island off the coast of Iran in the Persian Gulf, which has been one of Iran's major oil export points since 1987.The narrowest part of the Strait of Hormuz at distance of 24 miles (39 km) lies between the island and the Omani-owned Quoin Island.
The waters around Larak Island are one of the most diverse coral reef areas in the environment of the Persian Gulf. There are 37 species of scleractinian corals identified around Larak Island.
During their occupation in the 16th century, the Portuguese built fortresses here, as well as on the nearby Qeshm and Hormuz Islands. The island contains an Iranian military base which maintains several Chinese-made Silkworm HY-2 surface-to-surface missiles placed there in 1987
A floating terminal was established on Larak Island in June 1986. The island was bombed by Iraq in November and December 1986, as part of the Iran–Iraq War. As part of Operation Praying Mantis, the Iranian frigate Sahand was sunk by the United States Navy, 200 meters southwest of Larak Island. On 14 May 1988, the large 564,739 dwt Liberian supertanker, Seawise Giant, whilst carrying crude Iranian oil, was sunk by Iraqi anti-ship missiles off the coast of Larak Island.