Mark Gerretsen

Mark Gerretsen
Gerretsen as Mayor of Kingston, 2014.
Chief Government Whip
Assumed office
May 14, 2025
Prime Minister
Preceded byRechie Valdez
Deputy Leader of the Government in the House of Commons
In office
September 16, 2023  May 14, 2025
Prime Minister
Preceded bySherry Romanado
Succeeded byTBD
Member of Parliament
for Kingston and the Islands
Assumed office
October 19, 2015
Preceded byTed Hsu
Mayor of Kingston, Ontario
In office
December 1, 2010  December 1, 2014
Preceded byHarvey Rosen
Succeeded byBryan Paterson
Personal details
Born
John Mark Gerretsen

(1975-06-05) June 5, 1975
Kingston, Ontario, Canada
Political partyLiberal
SpouseVanessa Gerretsen
Children3
ParentJohn Gerretsen (father)
Residence(s)Kingston, Ontario
Alma materQueen's University
St. Lawrence College

Mark Gerretsen MP (born June 5, 1975) is a Canadian politician who is the Member of Parliament for Kingston and the Islands as a member of the Liberal Party of Canada. He was first elected in the 2015 federal election, and re-elected in 2019, 2021 and 2025. He currently serves on the Standing Committee for Procedure and House Affairs and is the former Chair of the Ontario Liberal Caucus.

Gerretsen currently serves as Deputy Leader of the Government in the House of Commons. He previously served as the Parliamentary secretary to the Leader of the Government in the House of Commons, a position he held effective December 3, 2021. Prior to his election to the House of Commons, Gerretsen served as Mayor of Kingston from 2010 to 2014.