The Ryan Ministry was the 27th ministry of the Government of Queensland and was led by Premier T. J. Ryan of the Labor Party. It was the first majority Labor government in Queensland's history. It succeeded the Denham Ministry on 1 June 1915, following the latter's defeat at the 1915 state election on 22 May. The Theodore Ministry succeeded it on 22 October 1919 following T. J. Ryan's resignation from the Queensland Parliament to run for federal politics.
On 1 June 1915, the Governor, Sir Hamilton Goold-Adams, designated eight principal executive offices of the Government and appointed the following Members of the Parliament of Queensland to the Ministry. They had been chosen by a caucus meeting of the Labor Party the previous day. Initially, as Labor was opposed to the Queensland Legislative Council entirely, it did not assign a portfolio to it; however, it ultimately appointed William Hamilton to the Council on 10 July 1915 and assigned him the Mines portfolio.
During the term, David Bowman, a former leader of the Labor Party, died; John Adamson left the Ministry and the Labor Party over the conscription issue; and Hamilton was appointed president of the Legislative Council, with Alfred Jones replacing him both as the government's representative in the Council and as a minister.
| Office | Minister | |
|---|---|---|
| Premier Chief Secretary Attorney-General Secretary for Mines (until 10 July 1915) Home Secretary (10–23 March 1916) | T. J. Ryan | |
| Deputy Premier Treasurer Secretary for Public Works | Ted Theodore | |
| Home Secretary | David Bowman (until 25 February 1916) | |
| Secretary for Agriculture and Stock | William Lennon | |
| Secretary for Public Lands | John McEwan Hunter | |
| Secretary for Railways | John Adamson (until 2 October 1916) | |
| Secretary for Public Instruction | Herbert Hardacre | |
| Minister without office (until 10 July 1915) Secretary for Mines (from 10 July 1915) | William Hamilton, MLC (8 June 1915 – 15 February 1917) | |
| Minister without office (until 23 March 1916) Home Secretary (from 23 March 1916) | John Huxham (from 10 July 1915) | |
| Secretary for Railways | Harry Coyne (from 13 October 1916) | |
| Secretary for Mines | Alfred Jones, MLC (from 15 February 1917) | |
| Minister without office | John Fihelly (from 10 July 1915) |
The ministry was reconstituted on 30 April 1918 following the 1918 election.
| Office | Minister | |
|---|---|---|
| Premier Chief Secretary Attorney-General | T. J. Ryan | |
| Deputy Premier Treasurer Secretary for Public Works | Ted Theodore | |
| Secretary for Agriculture and Stock | William Lennon | |
| Secretary for Public Instruction | Herbert Hardacre | |
| Home Secretary | John Huxham | |
| Secretary for Railways | John Fihelly | |
| Secretary for Public Lands | Harry Coyne | |
| Secretary for Mines | Alfred Jones, MLC | |
| Minister without office | William Gillies |
The ministry was altered on 9 September 1919 following the resignations of Herbert Hardacre and William Lennon; the following ministers served until the end of the ministry on 22 October 1919.
| Office | Minister | |
|---|---|---|
| Premier Chief Secretary Attorney-General | T. J. Ryan | |
| Deputy Premier Treasurer Secretary for Public Works | Ted Theodore | |
| Secretary for Public Instruction | John Huxham | |
| Secretary for Railways | John Fihelly | |
| Secretary for Public Lands | Harry Coyne | |
| Secretary for Mines | Alfred Jones, MLC | |
| Secretary for Agriculture and Stock | William Gillies | |
| Home Secretary | William McCormack | |
| Minister without office | James Larcombe |
. Colin Hughes. Graham, B. D. . A handbook of Australian government and politics, 1890-1964. 1968. Australian National University. Canberra. 0-7081-0270-0. 177.