| Navy | The Royal Navy |
| Type | Light cruiser |
| Class | Leander |
| Pennant | 85 |
| Built by | Devonport Dockyard (Plymouth, U.K) : Vickers Armstrong (Newcastle-on-Tyne, U.K.) |
| Ordered | 24 Mar 1931 |
| Laid down | 26 Sep 1931 |
| Launched | 24 Nov 1932 |
| Commissioned | 18 Jan 1934 |
| End service | 1947 |
| Loss position | |
| History | Decommissioned in 1947. |
Commands listed for HMS Orion (85)
Please note that we're still working on this section.
| Commander | From | To | ||
| 1 | Capt. Harold Richard George Kinahan, RN | 29 Jul 1937 | 12 Jan 1940 | |
| 2 | Capt. Geoffrey Robert Bensly Back, RN | 12 Jan 1940 | 29 May 1941 (+) | |
| 3 | Cdr. Trethowan Campbell Trevredyn Wynne, RN | 29 May 1941 | 15 Aug 1941 | |
| 4 | Cdr. John Percy de Winton Kitcat, RN | 15 Aug 1941 | 15 Jan 1942 | |
| 5 | Capt. George Cunningham Paton Menzies, RN | 15 Jan 1942 | Dec 1942 | |
| 6 | Capt. James Parrington Gornall, RN | Dec 1943 | 25 Jun 1945 | |
| 7 | Capt. Ralph Heathcote, DSO, RN | 25 Jun 1945 | Oct 1945 ? | |
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Noteable events involving Orion include:
23 Oct 1939
The British light cruiser HMS Orion (Capt. H.R.G. Kinahan, RN) and the Canadian destroyer HMCS Saguenay (Lt.Cdr. G.R. Miles, RCN) intercept the German tanker Emmy Friedrich (4372 BRT) in the Yukatan Strait west of Tampico. When the British light cruiser HMS Caradoc (Capt. E.W.L. Longley-Cook, RN) also arrives on the scene the Germans scuttled their own ship to prevent her capture.
17 Sep 1940
British raid on Benghazi;
Aircraft from the British aircraft carrier HMS Illustrious (Capt. D.W. Boyd, DSC, RN) attacked Italian ships in Benghazi harbour. Also mines were laid off the harbour. The destroyer Borea was sunk by torpedo, The destroyer Aquilone was mined and sunk. The merchants Gloria Stella (5490 GRT) and Maria Eugenia (4702 GRT) were also sunk during the attack.
Illustrious was escorted by the British battleship HMS Valiant (Capt. H.B. Rawlings, OBE, RN) the British heavy cruiser HMS Kent (Capt. D. Young-Jamieson, RN), the British light cruisers HMS Liverpool (Capt. P.A. Read, RN) HMS Gloucester (Capt. H.A. Rowley, RN), HMS Orion (Capt. G.R.B. Back, RN) and the British destroyers HMS Nubian (Cdr. R.W. Ravenhill, RN), HMS Mohawk (Cdr. J.W.M. Eaton, RN), HMS Hero (Cdr. H.W. Biggs, DSO, RN), HMS Hasty (Lt.Cdr. L.R.K. Tyrwhitt, RN), HMS Hyperion (Cdr. H.St.L. Nicolson, DSO and Bar, RN), HMS Hereward (Lt.Cdr. C.W. Greening, RN), HMS Decoy (Cdr. E.G. McGregor, DSO, RN), HMS Jervis (Capt. P.J. Mack, DSO, RN) and the Australian destroyer HMAS Waterhen (Lt.Cdr. J.H. Swain, RAN).
After the attack HMS Kent, escorted by HMS Nubian and HMS Mohawk, was detached to bombard Italian positions at Bardia early on the 18th. However before this could materialise HMS Kent was torpedoed and heavily damaged by Italian torpedo bombers just before midnight. Kent was hit in the stern and badly damaged. Kent was towed to Alexandria by HMS Nubian, escorted by light cruiser HMS Orion, AA cruiser HMS Calcutta (Capt. D.M. Lees, DSO, RN) and destroyers HMS Mohawk, HMS Jervis, HMS Juno (Cdr. W.E. Wilson, RN), HMS Janus (Cdr. J.A.W. Tothill, RN) and the Australian destroyer HMAS Vendetta (Lt.Cdr. R. Rhoades, RAN).
8 Oct 1940
Operation MB-6;
A British convoy with the merchants Memnon (7506 GRT), Lanarkshire (11275 GRT), Clan Macauley (10492 GRT) and Clan Ferguson (7347 GRT) left Alexandria for Malta on 8 October 1940. This convoy was escorted by the British Anti-Aircraft cruisers HMS Calcutta (Capt. D.M. Lees, DSO, RN), HMS Coventry (Capt. D. Gilmour, RN) and the Australian destroyers HMS Stuart (Capt. H.M.L. Waller, DSO, RAN), HMS Voyager (Cdr. J.C. Morrow, DSO, RAN), HMS Waterhen (Lt.Cdr. J.H. Swain, RAN) and the British destroyer HMS Wryneck (Cdr. R.H.D. Lane, RN).
Cover was provided by the Mediterranean Fleet (Admiral Cunningham) with the British battleships HMS Warspite (Capt. D.B. Fisher, CBE, RN), HMS Valiant (Capt. H.B. Rawlings, OBE, RN), HMS Malaya (Capt. A.F.E. Palliser, DSC, RN), HMS Ramillies (Capt. H.T. Baillie-Grohman, OBE, DSO, RN), the British aircraft carriers HMS Illustrious (Capt. D.W. Boyd, DSC, RN), HMS Eagle (Capt. A.R.M. Bridge, RN), the British heavy cruiser HMS York (Capt. R.H. Portal, DSC, RN), the British light cruisers HMS Gloucester (Capt. H.A. Rowley, RN), HMS Liverpool (Capt. P.A. Read, RN), HMS Ajax (Capt. E.D. McCarthy, RN), HMS Orion (Capt. G.R.B. Back, RN), the Australian light cruiser HMAS Sydney (Capt. J.A. Collins, CB, RAN)escorted by the British destroyers HMS Hyperion (Cdr. H.St.L. Nicolson, DSO and Bar, RN), HMS Havock (Cdr. R.E. Courage, DSO, DSC, RN), HMS Hero (Cdr. H.W. Biggs, DSO, RN), HMS Hereward (Lt.Cdr. C.W. Greening, RN), HMS Hasty, (Lt.Cdr. L.R.K. Tyrwhitt, RN), HMS Ilex (Lt.Cdr. P.L. Saumarez, DSC, RN), HMS Imperial (Lt.Cdr. C.A.deW. Kitcat, RN), HMS Jervis (Capt. P.J. Mack, DSO, RN), HMS Janus (Cdr. J.A.W. Tothill, RN), HMS Juno (Cdr. W.E. Wilson, RN), HMS Nubian (Cdr. R.W. Ravenhill, RN), HMS Dainty (Cdr. M.S. Thomas, DSO, RN), HMS Decoy (Cdr. E.G. McGregor, DSO, RN), HMS Defender (Lt.Cdr. St.J.R.J. Tyrwhitt, RN) and the Australian destroyers HMAS Vampire (Cdr. J.A. Walsh, RAN) and HMAS Vendetta (Cdr. R. Rhoades RAN).
The convoy was not spotted and arrived safe at Malta on 11 October. The only damage sustaned was to the destroyer HMS Imperial that was mined off Malta and was out of action for over 6 months.
While on the return trip the Mediterranean Fleet was sighted by an Italian aircraft. The Italian Navy tried to intercept them in the Ionian Sea. In the night of 11/12 October the first Italian torpedo boat flottilla with Airone, Alcione and Ariel attacked HMS Ajax. The attack failed and Ajax sank Airone and Ariel, Alcione escaped. A little while later the Italian 11th destroyer flottilla, with Artigliere, Aviere, Camicia Nera and Geniere arrived at the scene. They were suprised by the radar-directed gunfire from HMS Ajax. Artigliere was heavily damaged and Aviere was lightly damaged. Camicia Nere tried to tow Artigliere away but she was sighted by a British Sunderland aircraft that homed in 3 Swordfish aircraft from HMS Illustrious. However, the torpedoes they fired didn't hit the Italian ships. Later the Britsh heavy cruiser HMS York arrived at the scene. Camicia Nera quickly slipped the towing line and sped off. After her crew had left the ship Artiglire was sunk by York.
While the Mediterranean Fleet was still on the return trip aircraft from HMS Illustrious and HMS Eagle attacked Leros and in the evening of the 14th the British light cruiser HMS Liverpool while south-east off Crete was hit in the bow by a torpedo from an Italian aircraft. The cruiser was heavily damaged and was repaired at the Mare Island Navy Yard in the USA. HMS Liverpool was not operational again until January 1942.
