Erikub Atoll (Marshallese: Ādkup, [æ̯ær̪ʲ(ɛ͡ɔ)ɡʷu͡ipʲ]) is an uninhabited coral atoll of fourteen islands in the Pacific Ocean, located in the Ratak Chain of the Marshall Islands. Its total land area is only 1.53 square kilometres (0.59 sq mi), but it encloses a lagoon with an area of 230 square kilometres (89 sq mi).