Alan Beith

The Right Honourable
The Lord Beith
PC
The Right Honourable The Lord Beith PC
	Official portrait, 2019
Chair of the Liaison Committee
	In office; 21 July 2010 – 30 March 2015
Preceded by	Alan Williams
Succeeded by	Andrew Tyrie
Deputy Leader of the Liberal Democrats
	In office; 11 April 1992 – 12 February 2003
Leader	Paddy Ashdown; Charles Kennedy
Preceded by	Russell Johnston
Succeeded by	Menzies Campbell
Deputy Leader of the Liberal Party
	In office; 1985–1988
Leader	David Steel
Preceded by	John Pardoe (1979)
Succeeded by	Russell Johnston (Liberal Democrats)
Leader
Frontbench positions
Liberal Democrat Leader of the House of Commons
	In office; 29 August 1999 – 15 May 2003
Leader	Charles Kennedy
Preceded by	Charles Kennedy
Succeeded by	Paul Tyler
Liberal Democrat Spokesperson for Home Affairs
	In office; 12 July 1994 – 29 August 1999
Leader	Paddy Ashdown
Preceded by	Position established
Succeeded by	Simon Hughes
Liberal Chief Whip in the House of Commons
	In office; 1977–1985
Leader	David Steel
Preceded by	Cyril Smith
Succeeded by	David Alton
Member of the House of Lords
	Lord Temporal
	Life peerage ; 19 October 2015
Member of Parliament; for Berwick-upon-Tweed
	In office; 8 November 1973 – 30 March 2015
Preceded by	Antony Lambton
Succeeded by	Anne-Marie Trevelyan
Personal details
Born	20 April 1943; Poynton, Cheshire, England
Party	Liberal (before 1988); Liberal Democrats (1988–present)
Spouses	; Barbara Ward; (m. 1965; died 1998) ; Diana, Baroness Maddock (m. 2001; died 2020)
Children	2
Alma mater	Balliol College, Oxford; Nuffield College, Oxford
Website	Official website

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Alan James Beith, Baron Beith (born 20 April 1943), is a British Liberal Democrat politician who represented Berwick-upon-Tweed as its Member of Parliament (MP) from 1973 to 2015.

From 1992 to 2003 he was Deputy Leader of the Liberal Democrats. By 2015 he was the longest-serving member of his party's House of Commons delegation, and was the last Liberal Democrat MP to have experience of Parliament in the 1970s.

Beith was elevated as a life peer in the 2015 Dissolution Honours list, and took his title and a seat on the House of Lords opposition benches on 23 November 2015.