John Gray (born March 20, 1959) is a politician in Ontario, Canada, who is currently the Councillor for Ward 5 in the City of Oshawa.

He graduated from Henry Street High School and went on to study financial accounting at Centennial College in Toronto, Ontario.

Gray served as a Councillor for both the city of Oshawa and the Regional Municipality of Durham for nine years prior to being elected as mayor in November 2003.

In 2003 he ran for mayor and defeated four-term incumbent Nancy Diamond leading with 40% of the vote in a five candidate race.

[4] On October 22, 2018, Gray was elected to Oshawa City Council - Ward 5 - in a handily won victory, securing almost 60% of the votes cast.