Admiral of the Fleet Sir Thomas John Cochrane GCB (5 February 1789 – 19 October 1872) was a Royal Navy officer. After serving as a junior officer during the French Revolutionary Wars, he captured the French ship Favourite off the coast of Dutch Guiana and then took part in various actions including the capture of the Virgin Islands from Danish forces, the capture of the French island of Martinique and the capture of the French archipelago of Îles des Saintes during the Napoleonic Wars. He also took part in the burning of Washington and the attack on Baltimore during the War of 1812.
Cochrane went on to serve as colonial governor of Newfoundland and then as Member of Parliament for Ipswich before becoming Commander-in-Chief, East Indies and China Station and then Commander-in-Chief, Portsmouth.
Born the son of Admiral Sir Alexander Cochrane and Maria Cochrane (daughter of David Shaw and widow of Sir Jacob Wheate, 5th Baronet), Cochrane joined the Royal Navy in June 1796. He was appointed as a first class volunteer to the fifth-rate HMS Thetis on the North American Station and, having been promoted to midshipman, transferred to the third-rate HMS Ajax in the Channel Squadron early in 1800. In HMS Ajax, he saw action supporting French Royalist exiles at Quiberon in spring 1800, escorting troops for an abortive landing at Belle Île in May 1800 and taking part in the equally unsuccessful Ferrol Expedition in August 1800, before landing troops in Egypt in preparation for the more successful Battle of Alexandria in March 1801 during the French Revolutionary Wars.
Cochrane transferred to the third-rate HMS Northumberland, on the north coast of Spain, in early 1803 and, having been promoted to lieutenant on 14 June 1805, transferred to the fifth-rate HMS Jason in the West Indies, where his father was serving as Commander-in-Chief Leeward Islands. His rapid rise through the ranks clearly reflects his father's patronage.
Cochrane was elected Member of Parliament for Ipswich in July 1839. He went on to be second-in-command of the East Indies and China Station in July 1841 during the First Opium War and, having been promoted to rear admiral on 23 November 1841, he became Commander-in-chief of that station, with his flag in the third-rate HMS Agincourt in 1844. He took part in anti-piracy operations around north-west Borneo including the destruction of the forts at Brunei in July 1846. He was promoted to vice admiral on 14 January 1850 and became Commander-in-Chief, Portsmouth in 1852. Promoted to full admiral on 31 January 1856, he was appointed Vice-Admiral of the United Kingdom on 16 May 1863 and then promoted to Admiral of the Fleet on 12 September 1865.
He was appointed a Companion of the Order of the Bath on 18 April 1839, advanced to Knight Commander on 29 October 1847, and finally to Knight Grand Cross on 18 May 1860.
Cochrane died at Quarr Abbey House on the Isle of Wight on 19 October 1872 and was buried in the family mausoleum at Kensal Green Cemetery in London. His wife died at Quarr Abbey House on 27 May 1901. She was also buried at Kensal Green Cemetery, interred in the mausoleum alongside her husband. Survivors present at her funeral included her brother Major Cuffe, her son Lieutenant Thomas Belhaven Henry Cochrane (deputy governor of the Isle of Wight), her husband's two daughters by his first marriage, and their daughter Minna Cochrane.