Australia's mainland, covering about 7.6 million square kilometers, is commonly cited as the world's largest island because it is surrounded entirely by ocean without being grouped with a larger continental landmass, while the country as a whole is classed as the smallest of the seven continents. The distinction depends on where geographers draw the line between "island" and "continent."
Record no. MRB-2026-005643
World's Largest Island
Reference Record – Not Certified
This record is compiled from publicly available sources for reference. It has not been examined or certified by The Book of World Records.