| Honorific Prefix: | Sir |
| Thomas Frankland | |
| Honorific Suffix: | Bt |
| Birth Place: | India |
| Death Place: | Bath, Somerset, England |
| Allegiance: | Kingdom of Great Britain |
| Serviceyears: | 1731–1784 |
| Rank: | Admiral |
| Branch: | Royal Navy |
| Commands: | HMS Rose HMS Dragon Leeward Islands Station |
| Battles: | War of the Austrian Succession Seven Years' War |
Admiral Sir Thomas Frankland, 5th Baronet (26 June 1718 – 21 November 1784) was a British naval officer, MP and slave trader. He was the second son of Henry Frankland and Mary Cross. Frankland was born in the East Indies (probably India), his father being a member of the East India Company and briefly Governor of Bengal.
He entered the navy in 1731, serving in HMS York under Capt. Philip Vanbrugh, HMS Scarborough, and HMS Oxford before becoming a lieutenant in 1737. On 23 February 1738, he was sent to HMS Chatham, again under Capt. Vanbrugh, where he served for two years. He was briefly transferred to HMS Cumberland in March 1740 before promotion to captain on 15 July 1740 aboard HMS Rose.
He was promptly assigned to carry the newly appointed Governor of the Bahamas, John Tinker, to the islands, and remained in the Bahamas until 1746, fighting Spanish privateers and taking a number of prizes. He then returned home and was given command of HMS Dragon and sent to the West Indies. On 31 July 1755, he was given command of the Leeward Islands Station[1] as a commodore, arriving aboard HMS Winchester in October. Able but stubborn and of a difficult temper, he was involved in quarrels with his predecessor, Thomas Pye, and the local authorities in Antigua. He was promoted rear admiral while there, but refusing to accede to the Admiralty's wish to control some of the patronage at his disposal (declaring in a letter to the secretary "I have friends of my own to provide for") fell into immediate disfavour with his superiors. On 5 May 1757, he was replaced by Commodore John Moore, and returned to England in October, never to return to active duty. His promotions, however, continued in the usual manner as he gained seniority, culminating in the rank of Admiral of the White. During his stay in the West Indies he profiteered actively from slave trade.[2]
He had entered Parliament for the family's borough of Thirsk in 1747, and held the seat until 1780, when he sought the governorship of Greenwich Hospital. Unsuccessful, he returned as member for Thirsk in April 1784, but died in November of that year. He had inherited the baronetcy from his older brother in 1768.
A monument to his memory was erected in Chichester Cathedral sculpted by John Flaxman.[3]
The Frankland Islands off Queensland were named after him.
He married Sarah Rhett (of South Carolina, d. 1808) in May 1743 and had a large number of children, of whom nine survived him:
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