David O'Sullivan (civil servant)

David O'Sullivan is a senior Irish civil servant who has held several prominent positions within both the Irish civil service and the European Commission. He is best known for his long career in European affairs.

O'Sullivan served as Director-General for Trade at the European Commission from 2005 to 2010, playing a key role in shaping the EU's trade policy during that period. He later served as Chief Operating Officer of the European External Action Service (EEAS), the European Union's diplomatic service, from 2011 to 2014.

From 2014 to 2019, O'Sullivan served as the European Union's Ambassador to the United States. In this role, he represented the EU's interests and worked to strengthen transatlantic relations. His tenure coincided with a period of significant political change in the United States.

Following his term as EU Ambassador to the United States, O'Sullivan retired from the European Commission. He has since been involved in various advisory and consultancy roles.

O'Sullivan is recognised for his expertise in international trade, diplomacy, and European affairs. He is frequently invited to speak at conferences and events on these topics. He is considered an influential figure in the field of EU foreign policy.