The meridian 126° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 126th meridian west forms a great circle with the 54th meridian east.
Starting at the North Pole and heading south to the South Pole, the 126th meridian west passes through:
| Co-ordinates | Country, territory or sea | Notes |
|---|---|---|
| Arctic Ocean | ||
| Beaufort Sea | ||
| Canada | Northwest Territories - for about 1km, westernmost point of Banks Island (Cape Kellett) | |
| Amundsen Gulf | ||
| Canada | Northwest Territories Yukon British Columbia - mainland, Vancouver Island and Vargus Island |
|
| Pacific Ocean | ||
| Southern Ocean | ||
| Antarctica | Unclaimed territory |
|
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