Peter John FitzSimons (born 29 June 1961) is an Australian author, journalist, and radio and television presenter.

Fitzsimons Army Hospital, also known as Fitzsimons General Hospital, renamed Fitzsimons Army Medical Center in 1974, and Fitzsimons Building in 2018 was a U.S. Army facility located on in Aurora, Colorado.

(8 May 1924 – 14 February 2001) an Irish actor who emigrated to the United States, where he became a film producer after ending his acting career.