Which island is the biggest in the world?

The biggest island in the world is Greenland. It has an area of 2,130,800 square kilometres (822,700 square miles).

Here's the list of top 10 biggest islands in the world:

1. Greenland

• Area: 2,130,800 square kilometres (822,700 square miles)
• Country: Denmark

2. New Guinea

• Area: 785,753 square kilometres (303,381 square miles)
• Countries: Indonesia, Papua New Guinea

3. Borneo

• Area: 748,168 square kilometres (288,869 square miles)
• Countries: Brunei, Indonesia, Malaysia

4. Madagascar

• Area: 587,041 square kilometres (226,658 square miles)
• Country: Madagascar

5. Baffin Island

• Area: 507,451 square kilometres (195,928 square miles)
• Country: Canada

6. Sumatra

• Area: 443,065 square kilometres (171,068 square miles)
• Country: Indonesia

7. Honshu

• Area: 225,800 square kilometres (87,200 square miles)
• Country: Japan

8. Victoria Island

• Area: 217,291 square kilometres (83,897 square miles)
• Country: Canada

9. Great Britain

• Area: 209,331 square kilometres (80,823 square miles)
• Country: United Kingdom

10. Ellesmere Island

• Area: 196,236 square kilometres (75,767 square miles)
• Country: Canada

As a side note, Hawaii, which is the biggest island of the Unites States is on the 75th position in the list of world's biggest islands, having an area of 10,311 square kilometres (3,981 square miles).