Mark Brennock is an Irish 'Director of Public Affairs'^{[citation needed]} and a former journalist. He used to work for The Irish Times.

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He was educated in University College Dublin (B.A. Economics and Politics)^{[citation needed]} and Dublin City University (Journalism).^{[citation needed]} Until 2006, he served as chief political correspondent for The Irish Times. During a 20-year career as a journalist, he also served as Northern editor, deputy news editor and foreign affairs correspondent at the paper. He won four national awards for journalism.^[1] Stephen Collins was appointed as his successor at the paper.^{[citation needed]}

He left the Irish Times in 2006 to become 'Director of Public Affairs' at Murray Consultants, advising public and private sector clients on relationships with media and government.^{[citation needed]}