Peter Lyons may refer to:
Peter B. Lyons (fl. 1960s–2010s), U.S. Assistant Secretary of Energy for Nuclear Energy Peter Lyons Collister (born 1956), American cinematographer Peter Lyons (Virginia judge) (c. 1734–1809), judge of the Virginia Court of Appeals Peter Lyons (Queensland judge) (born 1946), justice of the Supreme Court of Queensland Peter Stanley Lyons (1927–2006), English choral musician and headmaster
See also Peter Lyon (born 1941), Australian rules footballer