This article is about Sir John Langdon Bonython (1848-1939)His son was named Sir John Lavington Bonython (1875-1960)
His grandson was named John Langdon Bonython (1905–1992)
Sir John Langdon Bonython (; 15 October 1848 – 22 October 1939), editor, newspaper proprietor, philanthropist, Australian politician and journalist, was a Member of the First Australian Parliament, and was editor of the Adelaide daily morning broadsheet, The Advertiser, for 35 years.