Joanne Kate Swinson CBE FRSA (born 5 February 1980) is a Scottish former politician who was Leader of the Liberal Democrats from July to December 2019. Swinson was Member of Parliament (MP) for East Dunbartonshire from 2005 to 2015 and 2017 to 2019. In September 2020, Swinson became Director of Partners for a New Economy (P4NE).
Swinson studied at the London School of Economics, and briefly worked in public relations, before being elected to the House of Commons aged 25, becoming the youngest MP at the time. She was a Liberal Democrat Spokesperson covering various portfolios, including Scotland, Women and Equalities, Communities and Local Government, and Foreign and Commonwealth Affairs.