Peter Ryan

Peter Ryan may refer to:

• Peter Ryan (racing driver) (1940–1962), Formula One race driver from Canada
• Peter Ryan (police officer) (born 1944), Commissioner of the New South Wales Police from 1996 until 2002
• Peter Ryan (politician) (born 1950), former leader of the National Party of Australia in Victoria
• Peter Ryan (rugby league) (born 1971), Australian rugby league footballer
• Peter Ryan (singer), contestant on the first season of Australian Idol
• Peter John Ryan (1925–2002), Australian surgeon
• Peter M. Ryan, American lawyer who has defended Guantanamo detainees, see Hiztullah Yar Nasrat
• Peter Ryan (basketball), player in the Canada national men's basketball team in the 1970s
• Peter Ryan (computer scientist), British computer scientist who devised Prêt à Voter
• Peter Ryan (columnist), newspaper columnist and author
• Peter Ryan (rugby union) (born 1940), rugby union player who represented Australia
• Peter Ryan (footballer, born 1891) (1891–1982), Australian footballer for St Kilda, see List of St Kilda Football Club players
• Peter Ryan (footballer, born 1936) (born 1936), Australian footballer for South Melbourne, see List of Sydney Swans players
• Peter Ryan (footballer, born 1948) (born 1948), Australian footballer for Hawthorn, see List of Hawthorn Football Club players
• Peter J. Ryan (1841–1908), Union Army soldier and Medal of Honor recipient