| Honorific-Prefix: | The Honourable |
| J. Judd Buchanan | |
| Office: | President of the Treasury Board |
| Primeminister: | Pierre Trudeau |
| Term Start: | November 24, 1978 |
| Term End: | June 3, 1979 |
| Predecessor: | Bob Andras |
| Successor: | Sinclair Stevens |
| Office1: | Minister of Public Works |
| Primeminister1: | Pierre Trudeau |
| Term Start1: | September 14, 1976 |
| Term End1: | November 23, 1978 |
| Predecessor1: | Charles Drury |
| Successor1: | André Ouellet |
| Office2: | Minister of Indian Affairs and Northern Development |
| Primeminister2: | Pierre Trudeau |
| Term Start2: | August 8, 1974 |
| Term End2: | September 13, 1976 |
| Predecessor2: | Jean Chrétien |
| Successor2: | Warren Allmand |
| Riding3: | Kingston and the Islands |
| Parliament3: | Canadian |
| Term Start3: | June 25, 1968 |
| Term End3: | August 12, 1980 |
| Predecessor3: | Edgar Benson |
| Successor3: | Peter Milliken |
| Birth Name: | JulianJudd Buchanan[1] |
| Birth Date: | July 25, 1929 |
| Birth Place: | Edmonton, Alberta, Canada |
| Profession: | insurance |
| Party: | Liberal |
Julian Judd Buchanan (born July 25, 1929) is a former Canadian politician and businessman.
After a career in the life insurance industry working for London Life, Buchanan, born in Edmonton, Alberta, was elected to the House of Commons of Canada in the 1968 election as the Liberal Member of Parliament for London West.
He served as a Parliamentary Secretary in the early 1970s, first to the Minister of Indian Affairs and Northern Development, and then to the Finance Minister.
He was appointed to the Cabinet by Prime Minister Pierre Trudeau in 1974 as Minister of Indian Affairs. In 1976, he was moved to the position of Minister of Public Works, and served concurrently as Minister of State for Science and Technology. In 1978, he left these files to become President of the Treasury Board until the defeat of the Trudeau government in the 1979 election.
When the Liberals returned to power in the 1980 election, Buchanan was not returned to Cabinet and he resigned his seat in the House of Commons in August 1980 to return to the private sector.[2]
Following his political career, Buchanan entered the tourism industry, leading Silver Star Mountain Resorts Ltd. In 1995, he helped create the Canadian Tourism Commission which works with government to promote Canada as a tourist destination. He served as its chairman until his retirement in 2002.
In 2000, he was made an Officer of the Order of Canada.[3]
There is a Judd Buchanan fonds at Library and Archives Canada.[4]