Greenland
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Area: 2,166,086 square km (836,331 square miles)
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Greenland is the largest island in the world, located in the North Atlantic Ocean. It’s technically an autonomous territory of Denmark.
New Guinea
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Area: 785,753 square km (303,381 square miles)
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Located in the Pacific Ocean, it is shared by Papua New Guinea and Indonesia. It’s the second-largest island in the world.
Borneo
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Area: 748,168 square km (288,869 square miles)
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Split between three countries—Malaysia, Brunei, and Indonesia. It's known for its tropical rainforests and diverse wildlife.
Madagascar
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Area: 587,041 square km (226,658 square miles)
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Located off the southeastern coast of Africa, Madagascar is the fourth-largest island and famous for its unique wildlife and biodiversity.
Baffin Island
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Area: 507,451 square km (195,928 square miles)
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Located in the Arctic, it’s the largest island in Canada and part of the Canadian Arctic Archipelago.
Sumatra
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Area: 473,481 square km (183,858 square miles)
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Sumatra is one of the major islands of Indonesia and is known for its volcanic mountains, rainforests, and wildlife, including endangered species like the Sumatran tiger.
Honshu
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Area: 227,962 square km (88,023 square miles)
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The largest island of Japan, home to major cities like Tokyo, Kyoto, and Osaka.
Great Britain
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Area: 209,331 square km (80,823 square miles)
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Comprising England, Scotland, and Wales, it’s the largest island in the British Isles.
Victoria Island
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Area: 217,291 square km (83,897 square miles)
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Another island in the Canadian Arctic Archipelago, it is the second-largest island in Canada.
Eurasian Islands (Europe-Asia)
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The combination of islands in the Mediterranean and the Arctic, such as Iceland, can sometimes make it challenging to rank but typically these would fall into the top islands.