Members of the Queensland Legislative Assembly, 1909–1912

This is a list of members of the 18th Legislative Assembly of Queensland from 1909 to 1912, as elected at the 1909 state election held on 2 October 1909.


 * On 7 February 1911, William Kidston, the Premier of Queensland and Liberal member for Rockhampton, resigned to become President of the Land Court. Labor candidate John Adamson won the resulting by-election on 25 February 1911.
 * On 7 February 1911, Arthur Hawthorn, the Liberal member for Enoggera, resigned following his appointment to the Queensland Legislative Council. Liberal candidate Richard Trout won the resulting by-election on 25 February 1911.
 * On 10 March 1911, Joshua Thomas Bell, the Liberal member for Dalby, died. At the resulting by-election on 2 April 1911, Liberal candidate William Vowles was elected.
 * In July 1911, the member for Fitzroy, James Crawford was expelled from the Labor Party for alleged disloyalty. He served out his term as an independent.
 * On 24 August 1911, Denis Keogh, the Liberal member for Rosewood, died. Liberal candidate Harry Stevens won the resulting by-election on 16 September 1911.
 * On 30 August 1911, Richard John Cottell, the Liberal member for Toowong, died. The Secretary for Public Lands and member for Brisbane North, Edward Macartney, resigned on 5 September. By-elections for both seats were held on 16 September 1911, with Macartney switching to Toowong, and Liberal candidate Thomas Welsby winning Brisbane North.