Kelvin fought in several theatres during the Second World War. In September 1940, as part of the 5th Destroyer Flotilla she scuttled, which had struck a mine off Texel during the Texel Disaster. In October, she was part of the escort for the battleship when she shelled Cherbourg. Under Admiral James Somerville, she was involved at the action off Cape Spartivento on 27 November 1940, and for the next two years she was busy in the Mediterranean Sea, being involved in many engagements. In May 1941, she bombarded Benghazi in company with the destroyers,, and before heading to Crete on 20 May 1941. She survived the withdrawal with comparatively light casualties, but required repairs and was sent to Bombay during which time her crew had sufficient time to tour India as far north as the Khyber Pass. By March 1942 she was back in the Mediterranean escorting convoy MW10 which took part in the Second Battle of Sirte. Later in the year she was involved in diversionary attacks in support of Operation Pedestal and bombarded Rhodes. On 16 April 1942, Kelvin landed troops from the 11th Battalion of the Royal Marines at Koufonisi near Crete to destroy a W/T station. In December, in company with, and, she sank the off Kerkennah Bank, Tunisia. In January 1943, she bombarded Zuwara and in company with was responsible for sinking a variety of Italian supply ships and minesweepers. Then along with Javelin, Kelvindestroyed an Italian convoyon the night of 19 January 1943. Several members of her crew were decorated for their part in destroying enemy ships and aircraft in the Mediterranean. She returned to the UK for refit in Chatham in July 1943, recommissioning in March 1944. In June 1944 she carried Winston Churchill and various other dignitaries across the English Channel during Operation Overlord. She returned to the Mediterranean and took part in operations to liberate the Dodecanese. She bombarded Tilos and landed a party of Special Boat Service troops in November 1944.
Post-war fate
Unlike many of the other J-, K- and N-class destroyers, Kelvin survived the war and was sold for scrap on 6 April 1949 and broken up at Troon in Scotland.
