Robert Lyon

Robert Lyon may refer to:

Robert Menli Lyon, early settler in Western Australia
Robert Lyon (politician), Canadian politician in Ontario
Robert Adam Lyon, Canadian businessman and politician
Robert Lyon (duellist), last Canadian killed in a duel
Robert Lyon (journalist), English-American journalist and newspaper editor and publisher
Robert W. Lyon, American politician, mayor of Pittsburgh, Pennsylvania
Robert Lyon (British Army officer), British general
Bob Lyon, American politician from Kansas