| Office3: | Ambassador of Ireland to Malaysia |
| Term Start3: | 2000 |
| Term End3: | 2001 |
| Predecessor3: | Brendan Lyons |
| Successor3: | Daniel Mulhall |
| President3: | Mary McAleese |
| Primeminister3: | Bertie Ahern |
| Office2: | Ambassador of Ireland to the United Kingdom |
| Term Start2: | 2009 |
| Term End2: | 2013 |
| Predecessor2: | David J. Cooney |
| Successor2: | Daniel Mulhall |
| President2: | Mary McAleese Michael D. Higgins |
| Primeminister2: | Brian Cowen Enda Kenny |
| Office: | Ambassador of Ireland to Italy |
| Term Start: | August 2013 |
| Term End: | July 2017 |
| Predecessor: | Pat Hennessy |
| Successor: | Colm Ó Floinn |
| President: | Michael D. Higgins |
| Primeminister: | Enda Kenny Leo Varadkar |
| Birth Date: | 1954 6, df=yes |
| Birth Place: | Washington D.C., United States |
| Birth Name: | Bobby McDonagh |
| Alma Mater: | Gonzaga College Balliol College, University of Oxford |
| Occupation: | Diplomat |
| Citizenship: | Irish |
Bobby McDonagh (born 29 June 1954)[1] is a former Irish diplomat.
He was educated in Gonzaga College, Dublin and graduated from Balliol College, Oxford[2] with an Master of Arts (MA) (Greats/Classics). He was elected President of the Oxford Union in 1974.
He entered the Irish diplomatic service in 1977. His father, Bob McDonagh, and brother, Philip McDonagh, also served as ambassadors in the service.
He is regarded as an expert on European Union affairs, having spent 23 years of his career either in the corridors of Brussels or in the EU division of the Irish Department of Foreign Affairs.This included periods in the Secretariat of the European Parliament, periods in the cabinets of two European Commissioners and a period (2005–2009) as the Irish Permanent Representative to the EU.[2]
He served as Director General of the EU division of the Irish Department of Foreign Affairs (2001–2005).[1]
He was Ambassador of Ireland to the United Kingdom (2009–2013), which included the period of the visit of Queen Elizabeth II to Ireland.[3]
He served as Ambassador of Ireland to Italy (2013–2017) and retired in 2018.[1]