Charles Alistair Geoffrey Dewhirst (born 4 June 1980) is a British Conservative Party politician who has been Member of Parliament (MP) for Bridlington and The Wolds since 2024.

Dewhirst grew up near Driffield in the East Riding of Yorkshire, where his family were involved in textiles and farming. Dewhirst graduated from the University of Edinburgh with a Master of Arts in Business Studies.

During his time at university, Dewhirst worked as a DJ in Edinburgh's nightclubs.

After leaving university, Dewhirst worked in the press office at Hull City AFC before moving to London to continue his career in sports broadcasting at iSports TV. Having become involved in politics as an activist during the 2005 general election, Dewhirst then worked as a parliamentary aide to Greg Hands before becoming a consultant at the global communications agency, Burson-Marsteller, where he was involved in the introduction of the Groceries Code Adjudicator.

Dewhirst returned to sport in 2011 with UK Sport and was responsible for briefing COBRA on the performance of Team GB and ParalympicsGB during London 2012. He then moved onto work for the Rugby Football Union before taking on the role of Head of Communications for the 2019 UCI Road World Championships hosted in Yorkshire.

Following the impact of the COVID-19 pandemic on global sport, he returned to his farming roots and worked as Chief Policy Adviser to the National Pig Association until the 2024 general election.

In 2010 Dewhirst was elected as a councillor for the Conservatives in Ravenscourt Park Ward in the London Borough of Hammersmith and Fulham, and re-elected in 2014. He served on the shadow cabinet from 2014 until he stood down from the council in 2018.

Dewhirst was the Conservative Party candidate for the constituency of Hammersmith in the 2015 general election and the 2017 general election.