The meridian 56° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Atlantic Ocean, South America, the Southern Ocean, and Antarctica to the South Pole. The 56th meridian west forms a great circle with the 124th meridian east.

From Pole to Pole

Starting at the North Pole and heading south to the South Pole, the 56th meridian west passes through: ! scope="col" width="120" | Co-ordinates ! scope="col" | Country, territory or sea ! scope="col" | Notes ! scope="row" style="background:#b0e0e6;" | Arctic Ocean ! scope="row" style="background:#b0e0e6;" | Lincoln Sea ! scope="row" | 🇬🇱 ! scope="row" style="background:#b0e0e6;" | Baffin Bay ! scope="row" style="background:#b0e0e6;" | Davis Strait ! scope="row" style="background:#b0e0e6;" | Atlantic Ocean ! scope="row" | 🇨🇦 ! scope="row" style="background:#b0e0e6;" | Strait of Belle Isle ! scope="row" | 🇨🇦 ! scope="row" style="background:#b0e0e6;" | Atlantic Ocean ! scope="row" | 🇨🇦 ! scope="row" style="background:#b0e0e6;" | Fortune Bay ! scope="row" | 🇨🇦 ! scope="row" style="background:#b0e0e6;" | Atlantic Ocean ! scope="row" | 🇸🇷 ! scope="row" | 🇧🇷 ! scope="row" | 🇸🇷 ! scope="row" | 🇧🇷 ! scope="row" | 🇵🇾 ! scope="row" | 🇦🇷 ! scope="row" | 🇧🇷 ! scope="row" | 🇺🇾 ! scope="row" style="background:#b0e0e6;" | Atlantic Ocean ! scope="row" style="background:#b0e0e6;" | Southern Ocean ! scope="row" | Antarctica ! scope="row" style="background:#b0e0e6;" | Southern Ocean ! scope="row" | Antarctica