Lyon, Arthur Sidney (1817?-1861), was an Australian journalist who is considered to be the father of the Queensland press. He founded and edited the first four newspapers in what is now the Australian state of Queensland.
Lyon was born in England around 1817. He worked in the newspaper industry in Melbourne before moving to Queensland. There he saw the need for a newspaper for the small settlement.
Lyon, along with James Swan, a printer from Sydney, established the Moreton Bay Courier in 1846. After selling his interest in the paper to Swan in 1848, Lyon became founding editor of the Moreton Bay Free Press in July 1850. In 1855, he became editor of the newly created North Australian, based in Ipswich, Queensland. Upon leaving the North Australian, Lyon began the Darling Downs Gazette in 1858. He died on Oct. 22, 1861, at age 44.