Fergusson Island is the largest island of the D'Entrecasteaux Islands, in Papua New Guinea. It has an area of 1,437 square kilometres (555 sq mi), and mostly consists of mountainous regions, covered by rain forests. There are three large volcanoes on the island. Fergusson Island is situated 3 km across the from Normanby Island and 4 km from Goodenough Island across . The island was named by Captain John Moresby after Sir James Fergusson, who was Governor-General of New Zealand from 1873 to 1874.