HMS Orion

Seven ships of the British Royal Navy have been named HMS Orion, after the hunter Orion of Greek mythology:
 * HMS Orion (1787) was a 74-gun third-rate ship of the line launched in 1787 and broken up in 1814.
 * HMS Orion (1854) was an 80-gun second-rate screw ship launched in 1854 and broken up in 1867.
 * HMS Orion (1879) was an armoured corvette built for the Ottoman Empire but purchased by the Royal Navy in 1878 and launched in 1879. She was converted to a depot ship and renamed HMS Orontes in 1909, and was sold in 1913.
 * HMS Orion was to have been an armoured cruiser. She was projected in 1904 but never built.
 * HMS Orion (1910) was an Orion-class battleship launched in 1910 and sold in 1922.
 * HMS Orion (85) was a Leander-class cruiser (1931) light cruiser launched in 1932 and sold in 1949.
 * Orion was a French submarine seized in 1940, laid up until 1943 and then broken up.

Battle honours

 * First of June 1794
 * Groix Island 1795
 * St Vincent 1797
 * Nile 1801
 * Trafalgar 1805
 * Baltic 1855
 * Jutland 1916
 * Atlantic 1939
 * Calabria 1940
 * Mediterranean 1940-44
 * Malta Convoys 1941
 * Matapan 1941
 * Greece 1941
 * Crete 1941
 * Sicily 1943
 * Salerno 1943
 * Aegean 1944
 * Anzio 1944
 * Normandy 1944
 * South France 1944