| Head Of Post | Title | Career | Appointment Date | Presentation of credentials | Termination of mission |
| Turgeon, Hon. William Ferdinand Alphonse | EEMP | NC | 1941/07/31 | 1941/11/13 | 1944/02/01 |
| Kirkwood, Kenneth Porter | Chargé d'Affaires a.i. | C | 1944/02/01 | | 1945/10/01 |
| Chipman, Warwick Fielding | AE&P | NC | 1945/08/07 | 1945/10/01 | 1949/03/30 |
| Kearney, John Doherty | AE&P | NC | 1949/03/31 | 1949/09/22 | 1951/10/28 |
| Roy, Lionel Victor Joseph | Chargé d'Affaires a.i. | C | 1951/10/28 | | 1952/08/19 |
| LaFlèche, Maj.-Gen. the Hon. Léo Richer | AE&P | NC | 1952/04/04 | 1952/08/19 | 1955/06/01 |
| Picard, Louis Phillippe | AE&P | NC | 1955/08/05 | 1955/11/24 | 1957/06/10 |
| Bower, Richard Plant | AE&P | C | 1958/11/05 | 1959/02/11 | 1962/12/04 |
| Mayrand, Léon | AE&P | C | 1962/11/29 | 1963/01/31 | 1964/02/23 |
| Bellemare, Edward Ritchie | Chargé d'Affaires a.i. | C | 1964/02/23 | | 1964/08/31 |
| Bruchési, Jean | AE&P | NC | 1964/06/04 | | 1967/00/05 |
| Choquette, Robert | AE&P | NC | 1968/02/29 | 1968/06/12 | 1970/08/03 |
| Bissonnet, Alfred Pike | AE&P | C | 1970/07/09 | 1970/10/21 | 1978/03/01 |
| Fulford, Dwight Wilder | AE&P | C | 1977/08/31 | 1978/03/28 | 1982/09/02 |
| Clark, Lorne Sheldon | AE&P | C | 1982/09/22 | 1982/09/20 | |
| Fréchette, Louise | AE&P | C | 1985/03/29 | 1985/06/17 | 1988/08/10 |
| Bullis, Clayton George | AE&P | C | 1988/08/11 | 1988/09/22 | 1991/09/11 |
| Rochon, Robert J. | AE&P | C | 1991/09/19 | 1991/10/28 | 1994/09/01 |
| Clark, Robert G. | AE&P | C | 1994/07/12 | 1994/10/26 | 1998/08/29 |
| Hubert, Jean-Paul | AE&P | C | 1998/07/15 | | 2001/07/04 |
| MacDonald, Thomas | AE&P | C | 2001/07/16 | | 2004 |
| Gagnon, Yves | AE&P | C | 2004/08/09 | | |
| Martin, Timothy | AE&P | C | 2007/07/31 | 2007/09/25 | 2010/06/04 |
| Kutz, Gwyneth | AE&P | C | 2010/08/10 | 2010/11/01 | |
| Fry, Robert | AE&P | C | 2015/02/02 | 2015/04/23 | 2018/08 |
| Usher, David | AE&P | C | 2018/09/24 | 2018/11/06 | 2021/10/28 |
| Sirrs, Reid | AE&P | C | 2021/12/20 | 2022/01/25 | |
