Peter Fitzgerald
Peter Fitzgerald may refer to:
- Sir Peter [FitzGerald, 1st Baronet], Anglo-Irish nobleman
- Peter Fitzgerald (actor), American actor
- Peter Fitzgerald (athlete), Australian former sprinter
- Peter FitzGerald (businessman), Irish businessman, founder of Randox
- Peter Fitzgerald (footballer), former Irish football player
- Peter FitzGerald, Irish commissioner and author of the FitzGerald Report on the assassination of Rafic Hariri
- Peter Fitzgerald (politician), United States Senator from Illinois, 1999–2005
- Peter Fitzgerald (rugby league), Australian rugby league player