Orion (ship)

Orion is the name of various ships and a ship class:

Naval

 * BAE Orion, Ecuadorian Navy ship, originally USS Mulberry (AN-27)
 * FRENCH SHIP Orion, Royal French Navy ship of the line
 * GERMAN AUXILIARY CRUISER Orion, a Nazi German auxiliary cruiser
 * HMAS Orion, Royal Australian Navy submarine
 * HMS Orion, various British Royal Navy ships
 * Orion-class battleship, British Royal Navy battleship class
 * HSWMS Orion (A201), Royal Swedish Navy signals intelligence ship
 * USS Orion, various US Navy ships

Civilian

 * MS Nordic Orion, an Arctic ice-strengthened cargo ship
 * MV Orion (also known as MS Orion, MY Orion), a National Geographic exploration ship
 * MV Orion, a Greek ro-ro freight ferry, previously Pentland Ferries' Orcadia and Caledonian MacBrayne's Saturn
 * Orion, a heavy lift vessel (HLV) operated by DEME Offshore, a subsidiary of the DEME Group.
 * Orion, a British ferry which sank in 1850
 * RMS Orion, an Orient Steam Navigation modified Orama-class ocean liner
 * SS Orion, a Swedish salvage ship and museum ship
 * SS Prinz Oskar, renamed Orion by 1919