The meridian 37° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, Greenland, the Atlantic Ocean, South America, the Southern Ocean, and Antarctica to the South Pole.
The 37th meridian west forms a great circle with the 143rd meridian east.
Starting at the North Pole and heading south to the South Pole, the 37th meridian west passes through:
| Co-ordinates | Country, territory or sea | Notes |
|---|---|---|
| Arctic Ocean | ||
| Roosevelt Land, Amundsen Land and the Ice sheet | ||
| Atlantic Ocean | ||
| Rio Grande do Norte Paraíba — from Pernambuco — for about 4 km from Paraíba — from Pernambuco — from Alagoas — from Sergipe — from | ||
| Atlantic Ocean | ||
| Island of South Georgia | ||
| Atlantic Ocean | Passing just east of Annenkov Island, (at) | |
| Southern Ocean | ||
| Antarctica | Claimed by both (Argentine Antarctica) and (British Antarctic Territory) | |