| Honorific-Prefix: | The Right Honourable |
| The Viscount Trenchard | |
| Honorific Suffix: | MC |
| Office1: | Minister of State for Defence Procurement |
| Primeminister1: | Margaret Thatcher |
| Term Start1: | 5 January 1981 |
| Term End1: | 6 January 1983 |
| Predecessor1: | The Lord Strathcona and Mount Royal |
| Successor1: | Geoffrey Pattie |
| Office2: | Minister of State for Industry |
| Primeminister2: | Margaret Thatcher |
| Term Start2: | 6 May 1979 |
| Term End2: | 5 January 1981 |
| Predecessor2: | Eric Heffer |
| Successor2: | Kenneth Baker |
| Office9: | Member of the House of Lords |
| Status9: | Lord Temporal |
| Term Start9: | 10 February 1956 |
| Term End9: | 29 April 1987 |
| Predecessor9: | The 1st Viscount Trenchard |
| Successor9: | The 3rd Viscount Trenchard |
| Birth Name: | Thomas Trenchard |
| Birth Date: | 15 December 1923 |
| Party: | Conservative |
| Education: | Eton College |
| Children: | 3 |
| Parents: | Hugh Trenchard, 1st Viscount Trenchard |
Thomas Trenchard, 2nd Viscount Trenchard, MC (15 December 1923 – 29 April 1987), was a British hereditary peer and junior minister in Margaret Thatcher's Conservative government from 1979 to 1983.
Thomas Trenchard was born in 1923, the son of Katherine and Hugh Trenchard, whom many regard as the father of the Royal Air Force. He was educated at Eton College and served in the King's Royal Rifle Corps in World War II being awarded the MC in 1945.
On 19 June 1948, Thomas Trenchard married Patricia Bailey, the daughter of Admiral Sir Sidney Bailey.[1]
They had three children:
He succeeded his father as Viscount Trenchard on 10 February 1956, and took his seat in the House of Lords on 28 February 1957. He was subsequently a Director of Unilever Ltd and Unilever NV from 1967 to 1977, and served as a Minister of State, Department of Industry from 1979 to 1981 and as Minister for Defence Procurement from 1981 to 1983.[2] After this, he became president of Women and Families for Defence, an anti-CND group.[3] [4]
Lord Trenchard died on 29 April 1987 and was succeeded by his eldest son Hugh. Lady Trenchard died in 2016 at the age of 90.[5] They are buried together in the churchyard at North Mymms, Hertfordshire.
| Escutcheon: | Per pale Argent and Azure in the first three pallets Sable all within a bordure of the last. |
| Crest: | A cubit arm erect vested Azure cuffed Argent holding in the hand a cinquedea sword both Proper. |
| Supporters: | On either side an eagle Gules the dexter charged with a thistle leaved and slipped and the sinister with a truncheon Or. |
| Motto: | Nosce Teipsum[6] |