Peter or Pete Allen may refer to:

• Peter Allen (musician) (1944–1992), Australian songwriter and singer
• Peter Allen (composer) (born 1952), Canadian composer mainly known for his film scores
• Pete Allen (musician) (born 1954), English dixieland jazz clarinettist

• Peter Allen (Australian politician) (c. 1855–1925), Australian politician
• Peter Allen (Alderney politician) (born 1965), member of the States of Alderney
• Peter Buell Allen (1775–1833), politician and military commander in New York State

• Peter Allen (footballer) (1946–2023), holder of appearance record at Leyton Orient
• Peter Allen (ice hockey) (born 1970), Canadian former ice hockey defenceman
• Pete Allen (baseball) (1868–1946), American Major League Baseball catcher

• Peter Allen (UK broadcaster) (born 1946), British broadcaster, a main presenter of BBC Radio Five Live and former ITN correspondent
• Peter Allen (American broadcaster) (1920–2016), American broadcaster, host of the Metropolitan Opera radio broadcasts

• Sir Peter Allen (industrialist) (1905–1993), chairman of Imperial Chemical Industries
• Peter Allen (physician) (1921–2014), Canadian surgeon
• Peter Lewis Allen (born 1957), British author
• Peter Allen (1943–1964), executed in England for the murder of John Alan West

• Peter Allan (disambiguation)
• Allen (surname)