William Grant (born 14 August 1951) is a Scottish Conservative Party politician who was the Member of Parliament (MP) for the Ayr, Carrick and Cumnock UK Parliamentary constituency from June 2017 to November 2019.

He subsequently declared his support of Prime Minister Theresa May's negotiated Brexit settlement provided that assurances were made on the issue of the Northern Irish backstop and UK fishing rights.

First, in December 2017, Grant appeared to have fallen asleep during a debate on pensions equality for women however, he claimed he was "listening intently".

Then, in July 2018, during questions to the then Secretary of State for Housing, Communities and Local Government, James Brokenshire, Grant was again caught asleep but this time admitted that he had taken "a wee nap" and was "guilty as charged".

[16] In March 2018, Bill Grant performed a citizens arrest in Bridges Bar, Ayr, while out for a drink against a man responsible for physically assaulting the landlord of the pub.