The meridian 93° west of Greenwich is a line of longitude that extends from the North Pole across the Arctic Ocean, North America, the Gulf of Mexico, Central America, the Pacific Ocean, the Southern Ocean, and Antarctica to the South Pole.
The 93rd meridian west forms a great circle with the 87th meridian east.
From Pole to Pole
Starting at the North Pole and heading south to the South Pole, the 93rd meridian west passes through:
{ | class="wikitable plainrowheaders" ! scope="col" width="120" | Co-ordinates ! scope="col" | Country, territory or sea ! scope="col" | Notes |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Arctic Ocean | style="background:#b0e0e6;" | |- | ! scope="row" | | Nunavut — Axel Heiberg Island |-valign="top" | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Norwegian Bay | style="background:#b0e0e6;" | Passing just east of Cornwall Island, Nunavut, (at ) |- | ! scope="row" | | Nunavut — Devon Island |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Wellington Channel | style="background:#b0e0e6;" | |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Parry Channel | style="background:#b0e0e6;" | Barrow Strait |- | ! scope="row" | | Nunavut — Somerset Island |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Gulf of Boothia | style="background:#b0e0e6;" | |- | ! scope="row" | | Nunavut — mainland |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Hudson Bay | style="background:#b0e0e6;" | |-valign="top" | ! scope="row" | | Manitoba Ontario — from |-valign="top" | ! scope="row" | | Minnesota, passing through Saint Paul (at ) Iowa — from Missouri — from Arkansas — from Louisiana — from |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Gulf of Mexico | style="background:#b0e0e6;" | |-valign="top" | ! scope="row" | | Tabasco Chiapas — from , passing just east of Tuxtla Gutiérrez. |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Pacific Ocean | style="background:#b0e0e6;" | |- | style="background:#b0e0e6;" | ! scope="row" style="background:#b0e0e6;" | Southern Ocean | style="background:#b0e0e6;" | |- | ! scope="row" | Antarctica | Unclaimed territory |- |}