| Glen Shortliffe | |
| Office: | Clerk of the Privy Council and Secretary to the Cabinet |
| Term Start: | July 1, 1992 |
| Term End: | March 27, 1994 |
| Primeminister: | Brian Mulroney Kim Campbell |
| Predecessor: | Paul Tellier |
| Successor: | Jocelyne Bourgon |
| Office2: | Deputy Clerk of the Privy Council and Associate Secretary to the Cabinet |
| Term Start2: | 1990 |
| Term End2: | 1992 |
| Primeminister2: | Brian Mulroney |
| Office3: | Deputy Minister of Transport |
| Term Start3: | 1988 |
| Term End3: | 1990 |
| Minister3: | Benoît Bouchard |
| Predecessor3: | Ramsey Muir Withers |
| Successor3: | Huguette Labelle |
| Office4: | Canadian Ambassador to Indonesia |
| Term Start4: | 1977 |
| Term End4: | 1979 |
| Birth Date: | 12 November 1937 |
| Birth Place: | Edmonton, Alberta |
| Death Place: | Ottawa, Ontario |
| Alma Mater: | University of Alberta |
Glen Scott Shortliffe (November 12, 1937 - May 4, 2010) was a Canadian diplomat, civil servant, businessman, and Clerk of the Privy Council.
Born in Edmonton, Alberta, he received a Bachelor of Arts degree from the University of Alberta in 1960.
From 1977 to 1979, he was the Canadian Ambassador to Indonesia.
From 1979 to 1982, he was the Vice President Policy for the Canadian International Development Agency. From 1982 to 1990, he held positions as Associate Secretary to the Cabinet, Deputy Minister of Transport, and Deputy Secretary to the Cabinet/Operations .
In 1990 he was appointed Associate Secretary to the Cabinet and Deputy Clerk of the Privy Council.
From 1992 to 1994, he was the Clerk of the Privy Council and Secretary to the Cabinet.
In 1994, he co-founded the Sussex Circle consulting group.
He died May 4, 2010, in Ottawa at home.