Greenland
Greenland.
Greenland is the largest island in the world, and it is owned by Denmark.
At 2,175,590 km2 in area (840,000 square miles), Greenland is the world's largest island (and it is owned by Denmark).
An island owned by Denmark.
Denmark governs the world's largest island, which is Greenland.
The size of an island is not determined by the total area ruled by a government. Greenland is the second-largest island (after Australia) and the largest not designated as a separate continent. Denmark, a European country north of Germany, has sovereignty over Greenland dating to its colonization beginning in 1605, and even earlier exploration by the Vikings. The natives of Greenland are Thules from Alaska, who migrated across Canada in the 13th and 14th century.
Greenland
Greenland, which Denmark owned.
Denmark
The largest tropical island owned by one person is probably the island of Necker which is owned by Richard Branson. It is a 74 acre island and he hosts large parties there for the rich and famous.
Cape Aldrich, Ellesmere Island, Nunavut, Canada; 83 degrees 7 minutes North, 69 degrees 40 minutes West
Denmark isn't an island, Greenland is. True, Greenland belongs to Denmark, but there is a big difference between the country Denmark and the island Greenland. Danish isn't the same as Kalaallisut (Greenlandic.) Greenland is the largest island in the world, not the third largest.
This country is the continent-island Australia. If you don't consider Australia as an island then the largest island is Greenland, an autonomous territory of Denmark; which would mean the title goes to Denmark.