This post is a list of the top 30 largest islands by size. The photo above is Greenland. Source: Wikipedia
- Greenland: 2.1 million km sq.
- New Guinea, Papua New Guinea: 785 thousand km sq.
- Borneo, Indonesia, Malaysia: 748 thousand km sq.
- Madagascar, Madagascar: 587 thousand km sq.
- Baffin Island, Canada: 507 thousand km sq.
- Sumatra, Indonesia: 443 thousand km sq.
- Honshū, Japan: 225 thousand km sq.
- Victoria Island, Canada: 217 thousand km sq.
- Great Britain, United Kingdom: 209 thousand km sq.
- Ellesmere Island, Canada: 196 thousand km sq.
- Sulawesi, Indonesia: 180 km sq.
- South Island, New Zealand: 145 thousand km sq.
- Java, Indonesia: 138 thousand km sq.
- North Island, New Zealand: 111 thousand km sq.
- Luzon, Philippines: 109 thousand km sq.
- Newfoundland, Canada: 109 thousand km sq.
- Cuba, Cuba: 108 thousand km sq.
- Iceland, Iceland: 101 thousand km sq.
- Mindanao, Philippines: 97 thousand km sq.
- Ireland, Ireland: 84 thousand km sq.
- Hokkaidō, Japan: 78 thousand km sq.
- Hispaniola, Dominican Republic, Haiti: 73 thousand km sq.
- Sakhalin, Russia: 72 thousand km sq.
- Banks Island, Canada: thousand km sq.
- Sri Lanka, Sri Lanka: 65 thousand km sq.
- Tasmania, Australia: 65 thousand km sq.
- Devon Island, Canada: 55 thousand km sq.
- Alexander Island, Antarctica: 49 thousand km sq.
- Isla Grande de Tierra del Fuego, Argentina, Chile: 47 thousand km sq.
- Severny Island, Russia: 47 thousand km sq.