| Honorific-Prefix: | The Right Honourable |
| The Lord Hayhoe | |
| Honorific-Suffix: | PC |
| Office1: | Parliamentary Under-Secretary of State for the Army |
| Primeminister1: | Margaret Thatcher |
| Predecessor1: | Robert Brown |
| Successor1: | Philip Goodhart |
| Term Start1: | 4 May 1979 |
| Term End1: | 5 January 1981 |
| Office2: | Member of Parliament for Brentford and Isleworth |
| Predecessor2: | Constituency created |
| Successor2: | Nirj Deva |
| Term Start2: | 28 February 1974 |
| Term End2: | 9 April 1992 |
| Office3: | Member of Parliament for Heston and Isleworth |
| Predecessor3: | Reader Harris |
| Successor3: | Constituency abolished |
| Term Start3: | 18 June 1970 |
| Term End3: | 28 February 1974 |
Bernard John Hayhoe, Baron Hayhoe, (8 August 1925 – 7 September 2013) was a British Conservative politician.
He was born in Surrey and attended Stanley Technical School, South Norwood. He left school at 16 to take up an apprenticeship in a toolroom and studied at Borough Polytechnic. He then joined the Ministry of Supply as a weapons engineer in the armaments department and later moved to the Inspectorate of Armaments.[1]
Hayhoe was elected the national chairman of the Young Conservatives in 1952 and left the civil service to contest Lewisham South at the 1964 election. He then worked for the Conservative Research Department. He was selected as the candidate for Heston and Isleworth for the 1970 election in place of Reader Harris, who was then facing criminal charges. Although Harris was acquitted before the election, Hayhoe remained the candidate.
Hayhoe was the Member of Parliament for Heston and Isleworth from 1970 until February 1974, then for Brentford and Isleworth from February 1974 until he retired at the 1992 general election. He had ministerial responsibility for the Army (1979–1981), the Civil Service Department (1981), the Civil Service (1981–1985) and the DHSS (1985–1986). He was on the moderate, left wing of the party and supported Michael Heseltine in his leadership challenge to Margaret Thatcher.
He was appointed as a Privy Councillor in 1985, knighted in 1987 and made a life peer on 21 August 1992 as Baron Hayhoe, of Isleworth in the London Borough of Hounslow.