Thomas Mayne Daly (February 17, 1827 – March 4, 1885) was a businessman and political figure in Canada West (later Ontario).

He ran a stage coach company, operated a grain mill and published the Stratford Examiner.

He was a contractor, building roads in Perth County and also railroads in Canada and the United States.

Foley was appointed to the cabinet and ran in Waterloo North; Daly defeated Robert MacFarlane in an 1862 by-election to regain the seat for Perth.

His son, Thomas Mayne Daly, was a member of parliament and cabinet minister from Manitoba.