The meridian 58° 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 58th meridian west forms a great circle with the 122nd meridian east.

From Pole to Pole

Starting at the North Pole and heading south to the South Pole, the 58th 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;" | Gulf of Saint Lawrence ! 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" | 🇵🇾 ! scope="row" | 🇦🇷 ! scope="row" | 🇵🇾 ! scope="row" | 🇦🇷 ! scope="row" | 🇺🇾 ! scope="row" | 🇦🇷 ! scope="row" | 🇺🇾 ! scope="row" style="background:#b0e0e6;" | Río de la Plata ! scope="row" | 🇦🇷 ! scope="row" style="background:#b0e0e6;" | Atlantic Ocean ! scope="row" | 🇫🇰 ! scope="row" style="background:#b0e0e6;" | Atlantic Ocean ! scope="row" style="background:#b0e0e6;" | Southern Ocean ! scope="row" | South Shetland Islands ! scope="row" style="background:#b0e0e6;" | Southern Ocean ! scope="row" | Antarctica ! scope="row" style="background:#b0e0e6;" | Southern Ocean ! scope="row" | Antarctica ! scope="row" style="background:#b0e0e6;" | Southern Ocean ! scope="row" | Antarctica