Susan (Sue) Elizabeth Garden, Baroness Garden of Frognal, Baroness Garden PC (born Button, 22 February 1944) is a British Liberal Democrat politician who, since 2018, serves as a Deputy Speaker in the House of Lords. Garden ran in the 2016 election to replace Baroness D'Souza as Lord Speaker, one of the two primary offices of the UK Parliament; Garden came second (of three candidates running) in that election to Lord Fowler.
Educated at Westonbirt School and St Hilda's College, Oxford she became a teacher, becoming Hon FCIL in 2012.
Lady Garden stood as the Liberal Democrat parliamentary candidate for Finchley and Golders Green (London) in 2005. In September 2007 she was created a Life Peer as Baroness Garden of Frognal, of Hampstead in the London Borough of Camden.
Lady Garden is a former Government Whip and Spokesperson for the Department for Digital, Culture, Media and Sport, for the Department for Business, Innovation and Skills and (on higher education) for the Department for Education.
Garden married Timothy Garden in 1965, and they had two daughters. Lord Garden (he too was enobled in 2007) died on 9 August 2007.