This is a list of Canada's ambassadors to the United States.

• Vincent Massey - 1927 – 1930
• W.D. Herridge - 1931 – 1935
• Sir Herbert Marler - 1936 – 1939
• Loring Christie - 1939 – 1941
• Leighton McCarthy - 1941 – 1944
• Lester B. Pearson - 1944 – 1946
• H.H. Wrong - 1946 – 1953
• A.D.P. Heeney - 1953 – 1957
• Norman Robertson - 1957 – 1958
• A.D.P. Heeney - 1959 – 1962
• C.S.A. Ritchie - 1962 – 1966
• A.E. Ritchie - 1966 – 1970
• Marcel Cadieux - 1970 – 1975
• Jake Warren - 1975 – 1977
• Peter Towe - 1977 – 1981
• Allan Gotlieb - 1981 – 1989
• Derek Burney - 1989 – 1993
• John de Chastelain - 1993 – 1994
• Raymond Chrétien - 1994 – 2000
• Michael Kergin - 2000 – 2005
• Frank McKenna - 2005 - present

See also: List of United States ambassadors to Canada, Canadian Embassy in Washington D.C.