Which country has the world’s longest coastline, stretching along the Atlantic, Pacific, and Arctic oceans?

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Canada has the world’s longest coastline, stretching along the Atlantic, Pacific, and Arctic oceans.

Canada’s coastline measures roughly 202,000 kilometers, although the exact figure varies according to the scale and method used to measure its many bays, inlets, islands, and fjords. The country borders three oceans: the Atlantic to the east, the Pacific to the west, and the Arctic to the north.

Its coastline includes the shores of Newfoundland and Labrador, the Pacific coast of British Columbia, Hudson Bay, and the extensive Arctic Archipelago. Canada also contains thousands of islands, including Baffin Island, which is the world’s fifth-largest island.

A common mix-up is to confuse coastline length with land area. Russia is the world’s largest country by area, while Canada is second by area and has the longest coastline. Canada’s northern coast is shaped by sea ice, polar waters, and complex channels that connect the Arctic Ocean with Hudson Bay and the Atlantic.

Source: Wikipedia · fact-checked Sept. 2026

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