List of Irish Ambassadors to the United States
The list of Irish Ambassadors to the United States provides an overview of the heads of the Irish diplomatic mission in the United States since the establishment of diplomatic relations.
| Term of office | Surname | annotation |
|---|---|---|
| 1924-1929 | Timothy A. Smiddy | Envoy |
| 1929-1938 | Michael MacWhite | Envoy |
| 1938 | Robert Brennan | Chargé d'affaires (a. I.) |
| 1938-1947 | Robert Brennan | Envoy |
| 1947-1950 | Sean Nunan | Envoy |
| 1950-1960 | John J. Hearne | ambassador |
| 1961-1964 | Thomas J. Kiernan | ambassador |
| 1964-1969 | William P. Fay | ambassador |
| 1970-1973 | William Warnock | ambassador |
| 1973 | Seán Ó hÉideáin | Chargé d'affaires (a. I.) |
| 1973-1978 | John Gerald Molloy | ambassador |
| 1978-1981 | Sean Donlon | ambassador |
| 1981 | John Burke | Chargé d'affaires (a. I.) |
| 1981-1985 | Tadhg F. O'Sullivan | ambassador |
| 1985-1991 | Pádraig MacKernan | ambassador |
| 1991-1997 | Dermot A. Gallagher | ambassador |
| 1997-2002 | Seán Ó hUiginn | ambassador |
| 2002 - 2007 | Noel Fahey | ambassador |
| 2007 - | Michael Collins | ambassador |