|Member of the Legislative Assembly of Alberta|
|Preceded by||Frank Gainer|
|Succeeded by||Frederick Kidd|
|Minister of Highways and Transport|
September 10, 1971 – March 1975
|Preceded by||Gordon Taylor|
|Succeeded by||Hugh Horner|
|Born||November 12, 1920|
|Died||June 4, 1979 (aged 58)|
|Political party||Progressive Conservative|
Clarence Copithorne (November 12, 1920 – June 4, 1979) was a provincial level politician from Alberta, Canada. He served as a member of the Legislative Assembly of Alberta from 1967 to 1975 sitting as an Independent and later with the Progressive Conservative caucus in both opposition and government. During his time in office he served as a cabinet minister in the government of Peter Lougheed from 1971 to 1975.
Copithorne ran for a seat to the Alberta Legislature in the 1967 Alberta general election. He ran in the electoral district of Banff-Cochrane as an independent candidate and won defeating two other candidates in a hotly contested race, including future MLA Roy Wilson.
On April 15, 1971 Copithorne joined the Progressive Conservative caucus giving up his independent status. He ran for re-election in the 1971 Alberta general election as a Progressive Conservative candidate. He increased his popular vote and held the district defeating two other candidates. His win would help the Progressive Conservatives form government that year.
He retired from the Alberta Legislature and his cabinet position at dissolution in 1975.
- Normandin, P.G.; Normandin, A.L. (1974). Guide parlementaire canadien. P.G. Normandin. ISSN 0315-6168. Retrieved November 17, 2014.
- "Banff-Cochrane results 1967". Alberta Heritage Community Foundation. Retrieved December 9, 2009.
- "Banff-Cochrane results 1971". Alberta Heritage Community Foundation. Retrieved December 9, 2009.
- "Dedication commemorates ongoing legacy of Kananaskis Country". Government of Alberta. September 22, 2008. Retrieved December 9, 2009.