| Honorific-Prefix: | The Right Honourable |
| Thomas Milner Gibson | |
| Order: | President of the Board of Trade |
| Term Start: | 6 July 1859 |
| Term End: | 26 June 1866 |
| Primeminister: | The Viscount Palmerston The Earl Russell |
| Predecessor: | The Earl of Donoughmore |
| Successor: | Sir Stafford Northcote, Bt |
| Order1: | Vice-President of the Board of Trade |
| Term Start1: | 8 July 1846 |
| Term End1: | 8 May 1848 |
| Monarch1: | Victoria |
| Primeminister1: | Lord John Russell |
| Predecessor1: | Sir George Clerk, Bt |
| Successor1: | The Earl Granville |
| Death Place: | Algiers, French Algeria |
| Nationality: | British |
| Spouse: | Susannah Cullum |
| Children: | Thomas Gibson Bowles |
Thomas Milner Gibson PC (3 September 1806 – 25 February 1884) was a British politician.
Thomas Milner Gibson came of a Suffolk family, but was born in Port of Spain, Trinidad, where his father, Thomas Milner Gibson, was serving as an officer in the British Army.
He was educated in Trinidad, in a school at Higham Hill also attended by Benjamin Disraeli, at Charterhouse, and at Trinity College, Cambridge, where he graduated in 1830.
In 1837, Gibson was elected to parliament as Conservative member for Ipswich, but resigned two years later and losing the subsequent by-election, having adopted Liberal views, and became an ardent supporter of the free-trade movement. As one of Richard Cobden's chief allies, he was elected to the House of Commons as Member of Parliament for Manchester in 1841, and, from 1846 to 1848, he was Vice-President of the Board of Trade in Lord John Russell's ministry.
Although defeated in Manchester in 1857, he found another seat for Ashton-under-Lyne, and sat in the cabinet under Lord Palmerston and then Russell from 1859 to 1866 as President of the Board of Trade.
In 1846, he was sworn of the Privy Council.[1] Gibson was the leading spirit in the movement for the repeal of taxes on knowledge, and his successful efforts on behalf of journalism and advertising were recognized by a public testimonial in 1862. He retired from political life in 1868, but he and his wife, whose salon was a great Liberal centre, were for many years very influential in society.
Milner Gibson married Arethusa Susannah Cullum, daughter of Revd. Sir Thomas Gery Cullum, 7th Baronet of Hardwick House, Suffolk, in 1832. They resided at Theberton House, Suffolk.
Gibson also had a relationship with Susannah Bowles, a servant girl. Their son, Thomas Gibson Bowles, became a noted publisher and was the maternal grandfather of the Mitford sisters.
Milner Gibson died on board his yacht, the Resolute, at Algiers on 25 February 1884, aged 77, and was buried in St. Peter's churchyard at Theberton in Suffolk on 13 March.[2]