thumb|260px|View of men loading sugar cane in the fields of Mago in 1884.
Mago Island (pronounced ) is a volcanic island that lies in the northwest sector of Fiji's northern Lau Group of islands. One of the largest private islands in the southwestern Pacific Ocean, the island has an area of . The island is privately owned by actor and director Mel Gibson.
Mago is located east-northeast of the Fiji capital of Suva and southwest of the tiny island of Namalata, near Vanua Balavu, where descendants of original Mago inhabitants still reside. Mago Island is relatively undeveloped at present and inhabited only by a few caretakers of Indo-Fijian descent.
History
During the 1860s, a cotton plantation established by the Ryder brothers of Australia flourished there. In 1884 there was a well-established sugar cane plantation plus a sugar mill on the island. The Mill was shut down in 1895 and it was dismantled and used to enlarge the Penang Mill in Ra. The Ryders were succeeded by the Borron family.
In early 2005 Mago Island was purchased by Hollywood actor/director Mel Gibson for $15 million from Japan's Tokyu Corporation. Descendants of original native inhabitants of Mago, who were displaced in the 1860s, have protested against Gibson's purchase.