Peter Brennan

Peter Brennan may refer to:

• Peter Brennan (bobsleigh) (born 1942), American Olympic bobsledder
• Peter Brennan (producer), American television producer
• Peter J. Brennan (1918–1996), United States Secretary of Labor under Presidents Nixon and Ford
• Peter Brennan (Newfoundland politician) (1786–1887), Irish-born political figure in Newfoundland
• Peter Paul Brennan (1941–2016), bishop of the Ecumenical Catholic Diocese of the Americas
• Pete Brennan (1936–2012), American basketball player
• Peter M. Brennan, American diplomat