This is a list of members of the 15th Legislative Assembly of Queensland from 1904 to 1907, as elected at the 1904 state election held on 27 August 1904.
At the start of the period, the state was governed by a coalition of a Liberal group led by Arthur Morgan, and the Labour Party led by William Kidston, while the Conservatives led by former Premier Robert Philp sat in opposition. In 1906, Morgan left to become president of the Queensland Legislative Council, replacing Hugh Nelson who had died on 1 January, and Kidston became Premier. By March 1907, a major realignment had taken place — Kidston had split away to form his own party, taking the ministry, numerous MPs and the coalition with him. By the 1907 state election, the parliamentary parties were as follows: