Lord Gavin Barwell is a British politician and former Downing Street Chief of Staff to the Prime Minister, Theresa May.

He was Member of Parliament for Croydon Central from 2010 until 2017, during which time he served as Minister of State for Housing, Planning and Minister for London at the Department for Communities and Local Government and a Government Whip.

He was Parliamentary Private Secretary (PPS) to the Secretary of State for Education, Michael Gove, from 2012 to 2013 and PPS to the Minister of State for Decentralisation and Planning Policy, Greg Clark, from 2011 to 2012. He now sits in the House of Lords.