Alan Beith, English academic and politician
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 and, by 2015, Beith was the longest-serving member of his party sitting in the House of Commons and 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.