Terrance Patrick O'Connor, QC (born March 24, 1940) is a former politician in Ontario, Canada.

O'Connor was born in Toronto, and graduated with a Bachelor of Laws degree from the University of Western Ontario.

He served as executive assistant to Attorney General of Ontario Allan Lawrence.

[3] The election was won by the Liberals under Pierre Trudeau, and O'Connor served as an opposition member for two years.

[5] The Progressive Conservative Party of Ontario won a narrow minority government in this election under Frank Miller's leadership, and was soon defeated in the legislature.