Lamotrek (Woleaian: Lamwocheg[1]) is a coral atoll of three islands in the central Caroline Islands in the Pacific Ocean, and forms a legislative district in Yap State in the Federated States of Micronesia.

[3] Among the individual islets are the following: Before European rule, Lamotrek was invaded by Ifalik during Mweoiush's reign, with aid from the Mailiyas.

In January 1849 an earthquake occurred causing a flood to submerge the island with the exception of some trees.

The water however swept away people in certain cases who climb the trees causing them to die.

The island came under the control of the Empire of Japan after World War I, and was subsequently administered under the South Seas Mandate.