Peter Brennan

• Peter Brennan , American Olympic bobsledder
• Peter Brennan, American television producer
• Peter J. Brennan, United States Secretary of Labor under Presidents Nixon and Ford
• Peter Brennan , Irish-born political figure in Newfoundland
• Peter Paul Brennan, bishop of the Ecumenical Catholic Diocese of the Americas
• Pete Brennan, American basketball player
• Peter M. Brennan, American diplomat