Lanbi Kyun, also Lambi Island and Lampi Island, (Sullivan's Island) is an island in the Mergui Archipelago, Burma. Having an area of 188 km², thickly wooded Lanbi is one of the largest islands of the group.
There were 200 Moken people dead in a small island off Lanbi following the 2004 Indian Ocean earthquake and tsunami. There were also unconfirmed reports of the presence of Sumatran rhinoceros on Lanbi, but this has been widely discredited.