This list of islands by area includes all islands in the world greater than 2,500 km2 (970 sq mi) and several other islands over 500 km2 (193 sq mi), sorted in descending order by area. For comparison, continents are also shown.
| Rank | Island’s Name | Area (Sq KM) | Country/ Countries |
| 1 | Greenland | 2130800 | Greenland |
| 2 | New Guinea | 785753 | Indonesia and Papua New Guinea |
| 3 | Borneo | 748168 | Brunei, Indonesia and Malaysia |
| 4 | Madagascar | 587713 | Madagascar |
| 5 | Baffin Island | 507451 | Canada |
| 6 | Sumatra | 443066 | Indonesia |
| 7 | Honshu | 225800 | Japan |
| 8 | Victoria Island | 217291 | Canada |
| 9 | Great Britain | 209331 | United Kingdom |
| 10 | Ellesmere Island | 196236 | Canada |
| 11 | Sulawesi | 180681 | Indonesia |
| 12 | South Island | 145836 | New Zealand |
| 13 | Java | 138794 | Indonesia |
| 14 | North Island | 111583 | New Zealand |
| 15 | Luzon | 109965 | Philippines |
| 16 | Newfoundland | 108860 | Canada |
| 17 | Cuba | 105806 | Cuba |
| 18 | Iceland | 101826 | Iceland |
| 19 | Mindanao | 97530 | Philippines |
| 20 | Ireland | 84421 | Ireland |
| 21 | Hokkaido | 78719 | Japan |
| 22 | Hispaniola | 73929 | Dominican Republic and Haiti |
| 23 | Sakhalin | 72493 | Russia |
| 24 | Banks Island | 70028 | Canada |
| 25 | Sri Lanka | 65268 | Sri Lanka |
