John Fraser (Ontario MPP)

John Fraser
Fraser in 2013
Interim leader of the Ontario Liberal Party
Assumed office
January 22, 2026
Preceded byBonnie Crombie
In office
August 3, 2022 – December 2, 2023
DeputyMitzie Hunter
Preceded bySteven Del Duca
Succeeded byBonnie Crombie
In office
June 14, 2018 – March 7, 2020
Preceded byKathleen Wynne
Succeeded bySteven Del Duca
Parliamentary Leader of the Ontario Liberal Party
Assumed office
March 8, 2020
LeaderSteven Del Duca
Bonnie Crombie
Preceded byPosition established
Member of the Ontario Provincial Parliament
for Ottawa South
Assumed office
September 9, 2013
Preceded byDalton McGuinty
Personal details
BornJohn P. Fraser
1959 (age 66–67)
Ottawa, Ontario, Canada
PartyLiberal
SpouseLinda Fraser
Occupation
  • Politician
  • business manager

John P. Fraser MPP (born c. 1958) is a Canadian politician who has served as interim leader of the Ontario Liberal Party since 2026.

He previously served as party interim leader from June 2018 to March 2020, and from August 2022 to December 2023. Fraser is the member of provincial parliament (MPP) for Ottawa South and was first elected in a by-election on August 1, 2013.

Following the resignation of Kathleen Wynne as party leader after the party's poor performance in the 2018 election, he was unanimously endorsed by the other six remaining Liberal MPPs to become interim leader on June 13, 2018 and unanimously elected the next day by a vote of the party executive and riding association presidents.

After Steven Del Duca was elected Liberal leader on March 7, 2020, Fraser remained the party's parliamentary leader as Del Duca did not have a seat in the legislature. He continued in this role during Bonnie Crombie's tenure as leader and again assumed the interim leadership following her resignation in January 2026.