Gordon Burton Grant was born on September 13, 1910 in Regina, Saskatchewan to William and Margaret (Moses) Grant. He received his early education in Regina, and later attended the University of British Columbia and the University of Toronto. Grant earned a Bachelor of Arts degree from the University of Saskatchewan in 1933.

Prior to entering provincial politics, Grant worked in the real estate industry and owned Walter M. Logan Co. Ltd., an insurance business. He served on the Regina Public School Board (1943-1944), on Regina City Council (1945-1951) and as Mayor of Regina (1952-1953). He also served on various boards of directors, including that of the Regina General Hospital; the Grey Nuns Hospital; the Kinsmen Club of Regina; the Saskatchewan Cancer Society; and the Saskatchewan Association of Urban Municipalities.

Grant was first elected to the Saskatchewan Legislature in 1964 and served as the Liberal Party Member of the Legislative Assembly for the Regina South constituency (1964-1971) and the Regina Whitmore Park constituency (1971-1975). He served in the Ross Thatcher Government as Minister of Highways and Transportation (1964-1966); Minister of Telephones (1964-1965, 1970-1971); Minister of Industry and Information (1964-1965); Minister of Industry and Commerce (1965-1967); and Minister of Public Health (1966-1971). He also held various ministerial responsibilities, including Minister Responsible for Saskatchewan Power Corporation (1967-1970). He served as Liberal Party Whip in opposition (1971-1975).

After his retirement from politics in 1975, Grant moved to Kelowna, British Columbia. He died there on January 16, 2001.

Gordon Grant married Eileen Briggs on July 12, 1935. They had three children: Donald, Sharon and Linda. Eileen Grant died in 1998. Gordon Grant was survived by his second wife, Helen.