Thomas McLaughlin McAvoy, Baron McAvoy (born 14 December 1943) is a Scottish Labour Co-operative politician currently serving as Opposition Chief Whip in the House of Lords.
McAvoy was a Member of Parliament for over 20 years, firstly as MP for Glasgow Rutherglen from 1987 to 2005 and then for Rutherglen and Hamilton West from 2005 to 2010.He held several positions in the Commons Government Whips Office, including Comptroller of the Household (Government Pairing Whip) from 1997 to 2008, then Treasurer of the Household (Government Deputy Chief Whip) from 2008 to 2010.
He entered the Lords after retiring as an MP shortly after the 2010 General Election, where he served as an Opposition Spokesperson for Scotland and Northern Ireland as well as a Senior Whip.