William Graham was a politician in Queensland, Australia. He was a Member of the Queensland Legislative Assembly and a Member of the Queensland Legislative Council.
William Graham was elected to the Queensland Legislative Assembly for Darling Downs at a by-election on 23 March 1875. He held the seat until 26 November 1878 when he made a last-minute decision to not contest the 1878 election.
Graham was appointed to the Queensland Legislative Council on 5 August 1880. Being a lifetime appointment, he served until his death on 7 June 1892.
Graham married Louisa Elizabeth Turner on 9 January 1864 in Brisbane.
Graham was buried in the Toowong Cemetery.