| Office: | Treasurer for the Island of Hong Kong |
| Term Start: | 1857 |
| Term End: | 1871 |
| Predecessor: | Robert Rienaecker |
| Successor: | Cecil Clementi Smith |
| Office1: | Council President of the Turks and Caicos Islands |
| Term Start1: | 1848 |
| Term End1: | 1854 |
| Predecessor1: | Inaugural holder |
| Successor1: | William Robert Inglis |
| Birth Name: | Frederick Henry Alexander Forth |
| Birth Place: | Lewisham, England |
| Death Place: | Tasmania, Australia |
| Parents: | Nathaniel Parker Forth Eliza Petrie |
| Relations: | Alexandre de Forth-Rouen (brother) |
Frederick Henry Alexander Forth (11 February 1808 – 7 April 1876) was a British colonial administrator. He was Lieutenant-Governor in the British West Indies, Colonial Treasurer of Hong Kong and magistrate of Tasmania.
Forth was born on 11 February 1808 to diplomat Nathaniel Parker Forth (1744–1809) and Eliza Petrie (1784–1864).[1] His father was King George III's private envoy to the courts of Versailles and Madrid.[2] From his parents' marriage, he had several siblings, including Alexandre de Forth-Rouen and Eliza Parker Forth (wife of the Hon. Jabez Henry). After his father's death in April 1809, shortly before his youngest brother's birth, his mother married Baron Alexandre-Jean-Denis Rouen des Mallets,[3] the Mayor of Taverny, with whom she had another daughter, Louise Rouen des Mallets (who married Charles Louis, Viscount Terray de Morel-Vindé in 1839), Frederick's half-sister.
His paternal grandfather was Sir Samuel Forth of Ludlow Castle.[3] His maternal grandparents were Anne (Keable) Petrie and John Petrie, a senior merchant in Calcutta in the 1780s. His niece, Jeanne Marie Terray de Morel-Vindé, married Guy de Rohan-Chabot, Pontifical Duke of Ravese.[4]
He was an army officer and lieutenant-governor in the British West Indies for some six years, where he was sent to initiate a government on the separation of those islands from the Bahamas.[5] He was the Council President of the Turks and Caicos from 1848 to 1854.[6] He was also the Colonial Treasurer of Hong Kong and ex officio member of the Legislative Council of Hong Kong.[7] He was a captain in the Scots Fusiliers and was appointed by Governor Sir George Arthur in the first visiting magistracy created in Tasmania. He prepared the first code of standing regulations for the management of some thousands of European convicts employed upon the public works and roads of the colony.[5]
On 27 December 1831, Forth was married to Caroline Jemima Sherson (1810–1878), a daughter of Robert Sherson and Catherine Taylor.[8] Together, they were the parents of:
He died in Tasmania in 1876.[11]
Through his son Robert de Lancey Forth, Forth's great-great-grandson is Australian-American media mogul Rupert Murdoch, through Murdoch's mother, Elisabeth Joy Greene, a daughter of Marie Grace de Lancey Forth.[12]