Sir David Roy Lidington is a former British politician who was the Member of Parliament (MP) for Aylesbury from 1992 until 2019. A member of the Conservative Party, he served as Chancellor of the Duchy of Lancaster and Minister for the Cabinet Office from 2018 to 2019 and was frequently described as being Theresa May's de facto Deputy Prime Minister.

Aylesbury is a constituency represented in the House of Commons of the UK Parliament since 2019 by Rob Butler of the Conservative Party.