This is a list of Canadian ambassadors and high commissioners to Ireland. Prior to 1949 Canada

Canada

Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

 sent High Commissioner

High Commissioner (Commonwealth)

In the Commonwealth of Nations, a High Commissioner is the senior diplomat in charge of the diplomatic mission of one Commonwealth government to another.-History:...

s to the Irish Free State

Irish Free State

The Irish Free State was the state established as a Dominion on 6 December 1922 under the Anglo-Irish Treaty, signed by the British government and Irish representatives exactly twelve months beforehand...

, which was a fellow Commonwealth Realm

Commonwealth Realm

A Commonwealth realm is a sovereign state within the Commonwealth of Nations that has Elizabeth II as its monarch and head of state. The sixteen current realms have a combined land area of 18.8 million km² , and a population of 134 million, of which all, except about two million, live in the six...

 at the time. With the passage of the Republic of Ireland Act 1948, the Oireachtas

Oireachtas

The Oireachtas , sometimes referred to as Oireachtas Éireann, is the "national parliament" or legislature of Ireland. The Oireachtas consists of:*The President of Ireland*The two Houses of the Oireachtas :**Dáil Éireann...

 (Irish parliament) explicitly stated that Ireland was a republic

Republic

A republic is a form of government in which the people, or some significant portion of them, have supreme control over the government and where offices of state are elected or chosen by elected people. In modern times, a common simplified definition of a republic is a government where the head of...

. Therefore, since Canada and Ireland

Republic of Ireland

Ireland , described as the Republic of Ireland , is a sovereign state in Europe occupying approximately five-sixths of the island of the same name. Its capital is Dublin. Ireland, which had a population of 4.58 million in 2011, is a constitutional republic governed as a parliamentary democracy,...

 no longer share a head of state, under diplomatic theory, they must now exchange ambassadors.

{| class="wikitable"
|-
!High Commissioner!!Start of Term!!End of Term
|-
|John Hall Kelly||December 28, 1929||March 9, 1941
|-
|John Doherty Kearney||July 31, 1941||
|-
|Merchant M. Mahoney||November 19, 1945||May 4, 1946
|-
|Edward Joseph Garland

Edward Joseph Garland

Edward Joseph "Ted" Garland was a farmer, diplomat and a Canadian federal politician.-Political career:...

||May 4, 1946||March 19, 1947
|-
|Hon. William Ferdinand Alphonse Turgeon

William Ferdinand Alphonse Turgeon

William Ferdinand Alphonse Turgeon, OC, PC was a Canadian politician and judge in the Province of Saskatchewan. He also served as a diplomat for the Government of Canada.- Early Life :...

||October 24, 1946||June 30, 1949
|}

Ambassador	Start of Term	End of Term
David Moffat Johnson	July 17, 1949	December 1949
Hon. William Ferdinand Alphonse Turgeon	January 23, 1950	April 20, 1955
Joseph Marc Antoine Jean Chapdelaine	January 23, 1950	July 17, 1950
Alfred Rive	August 16, 1955	July 7, 1963
Paul Vernon McLane	July 7, 1963	March 29, 1965
Evan William Thistle Gill	November 6, 1964	March 22, 1968
James Joachim McCardle	October 8, 1968
Harold Morton Maddick	May 25, 1972	August 31, 1976
Albert Edgar Ritchie	June 29, 1976	November 7, 1980
Alan William Sullivan	February 12, 1981
Hon. Edgar J. Benson	September 3, 1982
Gustav Gad Rezek	1985	May 12, 1986
Dennis McDermott Dennis McDermott Dennis McDermott, O.Ont was a Canadian trade unionist, Canadian Director of the United Auto Workers from 1968 to 1978 and president of the Canadian Labour Congress from 1978 to 1986....	January 28, 1986	May 24, 1989
Michael A. Wadsworth	August 24, 1989	October 22, 1994
Barry Michael Mawhinney	July 12, 1994	October 4, 1996
Michael B. Phillips	September 24, 1996	September 11, 1998
Ron Irwin Ron Irwin Ronald A. Irwin, PC, CM, QC is a Canadian diplomat and former politician.Born in Sault Ste. Marie, Ontario, Irwin earned an undergraduate degree from the University of Western Ontario and a law degree from Osgoode Hall Law School of York University. While at the University of Western Ontario he...	September 4, 1998
William Gusen	October 10, 2001	August 1, 2002
Mark Moher	July 2, 2002	August 8, 2006
Christopher William Westdal	September 20, 2006	December 7, 2006
Carl Schwenger	December 7, 2006