MacKenzie, CC CMG MM CD QC FRSC (January 5, 1894 – January 26, 1986) was President of the University of New Brunswick from 1940 to 1944, President of the University of British Columbia from 1944 to 1962, and a Senator from 1966 to 1969.

He studied law at Dalhousie, Harvard and Cambridge Universities.

In 1927, he went to the University of Toronto, where he taught law for thirteen years.

In 1959 he hosted Queen Elizabeth at the University of British Columbia's Faculty Club [1] After his retirement from UBC he was appointed as a member of the Senate from 1966 to 1969 representing the senatorial division of University-Point Grey, British Columbia.

[2] He was one of the five members of The Royal Commission on National Development in the Arts, Letters and Sciences chaired by Vincent Massey that held hearings across Canada from 1949–51, otherwise known as the Massey Commission.