Peter John FitzSimons AM (born 29 June 1961) is an Australian journalist, radio and television presenter and author. He is a former national representative rugby union player and has been the chair of the Australian Republic Movement since 2015.
FitzSimons grew up in Peats Ridge, in the Central Coast of New South Wales. He was one of seven children. He attended Peats Ridge Primary School, and Knox Grammar School before going in 1978 to Findlay High School, Ohio, for a year as an exchange student on an American Field Service Scholarship. He then completed an arts degree at the University of Sydney, residing at Wesley College from 1980 to 1982.
FitzSimons' club rugby was played first with the Sydney University Football Club and then with the Manly RUFC in Sydney in the 1980s under the coaching of Alan Jones. Between 1985 and 1989 he played with CA Brive in France for four seasons as the club's first foreign player. He played seven Tests at lock for Australia between 1989 and 1990, debuting against France in Strasbourg in November 1989, on the Wallabies 1989 tour of Europe. His final Test match was against New Zealand in Christchurch.