The Barroso Commission was the European Commission in office from 22 November 2004 until 31 October 2014. Its president was José Durão Barroso, who presided over 27 other commissioners. On 16 September 2009 Barroso was re-elected by the European Parliament for a further five years and his Commission was approved to take office on 9 February 2010.

The European Commission (EC) is part of the executive of the European Union (EU). It operates as a cabinet government, with 27 members of the Commission headed by a President. It includes an administrative body of about 32,000 European civil servants. The commission is divided into departments known as Directorates-General (DGs) that can be likened to departments or ministries each headed by a Director-General who is responsible to a Commissioner.