HMS Caledon was a C-class light cruiser built for the Royal Navy during World War I.

[4] The main armament of the Caledon-class ships consisted of five BL 6-inch (152 mm) Mk XII guns that were mounted on the centreline.

[4] Caledon, commanded by Commodore Walter Cowan, saw action in the Second Battle of Heligoland Bight, where the ship was the leader of the First Light Cruiser Squadron.

[5][6] Throughout the battle, five men of Caledon's crew were killed, with one man, John Henry Carless being awarded a posthumous Victoria Cross for remaining at his gun after receiving a fatal wound.

[12] The ship spent the early part of the Second World War with the Home Fleet, where she escorted convoys and was involved in the pursuit of the German battleships Scharnhorst and Gneisenau after the sinking of HMS Rawalpindi.

Upon her arrival in the UK, she underwent conversion into an anti-aircraft cruiser at Chatham Dockyard between 14 September 1942 and 7 December 1943, replacing the entire armament with modern AA weaponry.

Obsolete by the end of the war, she was disarmed in April 1945, and subsequently sold for scrap on 22 January 1948.