Sorin Dan Mihalache (born 18 May 1971 in Timișoara) is a Romanian politician and former Member of the European Parliament.

He is a member of the Social Democratic Party, part of the Party of European Socialists, became an MEP on 1 January 2007 with the accession of Romania to the European Union and he serves as the Ambassador of Romania to the United Kingdom of Great Britain and Northern Ireland since 8 June 2016.

[4] In 2012 Dan Mihalache was discharged from the role as the Deputy Secretary General of the Romanian Government by the Prime Minister Victor Ponta as a result of Mihalache's comments regarding the warning raised by the Ambassador to Romania, Mark Gitenstein, against any modifications to the Romania's National Integrity Agency's law (whose main task is to ensure the performance of public dignities and positions in conditions of impartiality, integrity and transparency[5]), which the Ambassador said could lead to a new set of discussions or even cancelling a proposed Romanian-American Strategic Partnership;[6] Mihalache declared in an interview that he is not worried about the ambassador's warning and suggested that it may be better if the partnership didn't happen, considering who the director of Romania's National Integrity Agency is, leading to his dismissal by the prime minister.

[8] In 2015 presidential adviser Dan Mihalache was caught on camera sleeping while waiting for the meeting between President Klaus Iohannis and his Serbian counterpart to end.

[9] Mihalache claimed he was not sleeping and it was a manipulation of the public by the tabloid media[10] while president Klaus Iohannis declared that it was a poor attempt to discredit his team.