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John Alderdice

b. 1955

Northern Ireland politician

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About John Alderdice

Born 1955. John Alderdice is a British politician and psychiatrist.

John Thomas Alderdice, Baron Alderdice (born 28 March 1955 ), is a Northern Ireland politician. He was the Speaker and a Member of the Northern Ireland Assembly (MLA) for East Belfast from 1998 to 2004 and 1998 to 2003, respectively. Alderdice was the leader of the Alliance Party of Northern Ireland from 1987 to 1998, and since 1996 has sat in the House of Lords as a Liberal Democrat. He worked part-time as a consultant psychiatrist in psychotherapy in the NHS from 1988 until he retired from psychiatric practice in 2010. He also lectured at Queen's University's Faculty of Medicine between 1991 and 1999. He is the older brother of David Alderdice.

Political career in Northern Ireland The Alliance Party was formed in 1970 as an alternative to sectarian politics. Alderdice was on the executive committee of the party between 1984 and 1998, chair of the policy committee between 1985 and 1987 and the party vice-chair in 1987, before becoming the party leader after the 1987 general election. He contested Belfast East for the party in 1987 and 1992. the highest percentage achieved by Alliance in an individual seat in a Westminster election until Naomi Long's historic victory for the party in Belfast East in the 2010 general election. In 1988, in Alliance's keynote post-Anglo Irish Agreement document, "Governing with Consent", Alderdice called for a devolved power-sharing government based on a voluntary coalition elected by a qualified majority vote. Throughout the late 1980s and early 1990s, Alliance's vote across Northern Ireland stabilised at between 6% and 8%.

He was elected to the Northern Ireland Assembly for Belfast East in 1998 and became the assembly's first speaker, serving until 2004. Mo Mowlam said that Alderdice's "political and parliamentary experience mean that he is well suited to carry out this role". Alderdice was a member of Belfast City Council from 1989 until 1997 representing the Victoria constituency.

Elevation to peerage Alderdice was created a life peer on 8 October 1996 as Baron Alderdice, of Knock in the City of Belfast, and was one of the youngest ever life peers.

Awards and honours Alderdice has been awarded several honours: the John F Kennedy Profiles in Courage Award in 1998; the W. Averell Harriman Democracy Award in 1998; the Silver Medal of Congress of Peru in 1999 and 2004; the Medal of Honour, College of Medicine of Peru in 1999; and the Freedom of the City of Baltimore in 1991. He was an elder in the Presbyterian Church in Ireland,

In 2001, he was made an honorary fellow of the Royal College of Psychiatrists

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Important facts

Birth century
Nationality
Education
Queen's University Belfast, Ballymena Academy
Positions held
President of Liberal International, Speaker of the Northern Ireland Assembly, Member of the House of Lords, Leader of the Alliance Party of Northern Ireland
Employers
Queen's University Belfast
Awards
Fellow of the Royal College of Psychiatrists; Honorary doctorate
Also known as
John Thomas Alderdice, Baron Alderdice, John Alderdice

People in John Alderdice's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped John Alderdice's

Frequently asked questions

Who is John Alderdice?

Northern Ireland politician

When was John Alderdice born?

John Alderdice was born on 28 March 1955 in Ballymena.

What is John Alderdice's occupation?

John Alderdice is a politician and psychiatrist.

What nationality is John Alderdice?

John Alderdice is British.

Sources & further reading

· Wikipedia: John Alderdice

· Wikidata: Q336390

· DBpedia: John Alderdice, Baron Alderdice

Cite this page

APA: Biography.guide. (2026). John Alderdice. https://biography.guide/john-alderdice/

MLA: "John Alderdice." Biography.guide, https://biography.guide/john-alderdice/.

Chicago: "John Alderdice." Biography.guide. https://biography.guide/john-alderdice/.

Data last updated: 2026-09-23 · Spot an error? Report a correction.

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