Chipping Barnet is a constituency created in 1974 represented in the House of Commons of the UK Parliament since 2005 by Theresa Villiers of the Conservative Party. Villiers was the Secretary of State for Northern Ireland from 2012 until 2016 under the leadership of Prime Minister David Cameron before she was dismissed when the incoming Prime Minister Theresa May took office. Boris Johnson appointed her as Secretary of State for Environment, Food and Rural Affairs in July 2019 before she was sacked in February 2020. It is part of the London Borough of Barnet.