coral island of Papua New Guinea, southwestern Pacific Ocean, approximately 150 miles (240 km) northeast of the southeasternmost point of the island of New Guinea, Solomon Sea. Muyua's rough surface of raised coral pinnacles (rising to 1,200 feet 【365 metres】 in the south) is covered by dense jungle growth. The major anchorages, along the south coast, are Guasopa and Suloga harbours; here also is Kolumadau, the principal settlement.

Gold was mined from 1934 to 1938, but mining stopped during World War II, when Muyua served as an Allied air base. Unexploited gold deposits remain on the island, and gold, silver, and zinc have been found in the island's seabed. There are outcrops of ironstone containing magnetite ore. The island is sometimes called Woodlark for the eponymous Australian ship, which anchored there in 1836.