Sarah Wollaston (born 17 February 1962) is a British former Liberal Democrat politician who served as Member of Parliament (MP) for Totnes from 2010 to 2019. First elected for the Conservative Party, she later served as a Change UK and Liberal Democrat MP. She was chair of the Health Select Committee from 2014 to 2019 and chair of the Liaison Committee from 2017 to 2019.