Counting its mainland and more than 50,000 islands along the Atlantic, Pacific, and Arctic oceans, Canada's coastline measures roughly 243,000 kilometres, longer than that of any other nation. It is longer than the combined coastlines of the next several countries on the list.
Record no. MRB-2026-005665
Longest Coastline of Any Country
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.