List of 1978 British incumbents

This is a list of 1978 British incumbents.

Government

 * Monarch
 * Head of State – Elizabeth II, Queen of the United Kingdom (1952–2022)
 * Prime Minister
 * Head of Government – James Callaghan, Prime Minister of the United Kingdom (1976–1979)
 * First Lord of the Treasury
 * James Callaghan, First Lord of the Treasury (1976–1979)
 * Chancellor of the Exchequer
 * Denis Healey, Chancellor of the Exchequer (1974–1979)
 * Second Lord of the Treasury
 * Denis Healey, Second Lord of the Treasury (1974–1979)
 * Secretary of State for Foreign and Commonwealth Affairs
 * Dr David Owen, Secretary of State for Foreign and Commonwealth Affairs (1977–1979)
 * Secretary of State for the Home Department
 * Merlyn Rees, Secretary of State for the Home Department (1976–1979)
 * Secretary of State for Transport
 * Bill Rodgers, Secretary of State for Transport (1976–1979)
 * Secretary of State for Scotland
 * Bruce Millan, Secretary of State for Scotland (1976–1979)
 * Secretary of State for Social Services
 * David Ennals, Secretary of State for Social Services (1976–1979)
 * Secretary of State for Northern Ireland
 * Roy Mason, Secretary of State for Northern Ireland (1976–1979)
 * Secretary of State for Defence
 * Frederick Mulley, Secretary of State for Defence (1976–1979)
 * Secretary of State for Industry
 * Eric Varley, Secretary of State for Industry (1975–1979)
 * Secretary of State for Trade
 * Edmund Dell, Secretary of State for Trade (1976–1978)
 * John Smith, Secretary of State for Trade (1978–1979)
 * Secretary of State for Education and Science
 * Shirley Williams, Secretary of State for Education and Science (1976–1979)
 * Secretary of State for Wales
 * John Morris, Secretary of State for Wales (1974–1979)
 * Lord Privy Seal
 * Fred Peart, Baron Peart, Lord Privy Seal (1976–1979)
 * Leader of the House of Commons
 * Michael Foot, Leader of the House of Commons (1976–1979)
 * Lord President of the Council
 * Michael Foot, Lord President of the Council (1976–1979)
 * Lord Chancellor
 * Elwyn Jones, Baron Elwyn-Jones, Lord Chancellor (1974–1979)
 * Chancellor of the Duchy of Lancaster
 * Harold Lever, Chancellor of the Duchy of Lancaster (1974–1979)

Religion

 * Archbishop of Canterbury
 * Donald Coggan, Archbishop of Canterbury (1974–1980)
 * Archbishop of York
 * Stuart Blanch, Archbishop of York (1975–1983)