| Head of Post | Title | Career | Appointment Date | Presentation of credentials | Termination of mission |
| Turcotte, Edmond | AE&P | NC | 1952/11/22 | 1952/04/09 | 1955/11/16 |
| McCullough, Wilfrid Bertram | Chargé d'Affaires a.i. | C | 1955/11/16 | 1957/04/05 | |
| Ford, Robert Arthur Douglass | AE&P | C | 1957/01/17 | 1957/04/05 | 1958/12/13 |
| Morin, Jean | AE&P | NC | 1959/04/14 | 1959/06/11 | 1961/06/02 |
| Newton, Theodore Francis Moorhouse | AE&P | C | 1961/07/31 | 1961/10/04 | 1964/01/29 |
| Dier, Ormond Wilson | AE&P | C | 1964/07/03 | 1964/10/07 | 1967/03/02 |
| Cleveland, John Harrison | AE&P | C | 1967/04/19 | 1967/06/28 | 1970/07/11 |
| Freifeld, Sidney Allan | AE&P | C | 1970/05/28 | 1975/06/20 | |
| Garceau, Pierre Robert | AE&P | NC | 1975/10/21 | 1977/09/09 | |
| Laughton, David Benson | AE&P | C | 1977/10/27 | 1977/12/01 | 1979/12/18 |
| Donohue, Laughton | Chargé d'Affaires a.i. | C | 1979/12/00 | 1980/08/00 | |
| Valentine, George Douglas | AE&P | C | 1980/07/10 | 1980/09/25 | |
| Gibson, John Edward Guy | AE&P | C | 1983/10/13 | 1987/08/28 | |
| Lavertu, Gaétan | AE&P | C | 1987/07/13 | 1987/10/26 | 1989/09/29 |
| Browne, Dean John | AE&P | C | 1989/09/29 | 1989/10/24 | |
| McArthur, Archibald Duncan | AE&P | C | 1993/08/09 | ||
| Ross, C.William | AE&P | C | 1996/00/00 | 1999/08/14 | |
| Rishchynski, Guillermo | AE&P | C | 1999/06/10 | ||
| Duval, Jean-Marc | AE&P | C | 2002/07/02 | 2005/07/00 | |
| Levin, Matthew | AE&P | C | 2005/06/21 | ||
| des Rivières, Geniève | AE&P | C | 2008/09/02 | ||
| Martin, Timothy | AE&P | C | 2011/07/19 |