Alun Hugh Cairns (born 30 July 1970) is a British Conservative Party politician who served as Secretary of State for Wales from 2016 to 2019.
He was previously a member of the National Assembly for Wales for the South Wales West region from the 1999 Welsh Assembly Election until 2011, and was elected at the 2010 general election as the Member of Parliament (MP) for the Vale of Glamorgan.
He resigned as Secretary of State on 6 November 2019, after claims he had known about a former aide's role in the 'sabotage' of a rape trial.