Ruth Margaret Cadbury (born 14 May 1959) is a British politician serving as the Member of Parliament (MP) for Brentford and Isleworth since 2015. A member of the Labour Party, she has been Shadow Minister for International Trade since 2021. A former planning consultant, Cadbury previously served on the opposition front bench as Shadow Minister for Housing from 2016 to 2017 and Shadow Minister for Planning in 2021.