The Theodore Ministry was the 28th ministry of the Government of Queensland and was led by Premier Ted Theodore of the Labor Party. It succeeded the Ryan Ministry on 22 October 1919 following T. J. Ryan's resignation from the Queensland parliament to run for federal politics, and was in turn succeeded by the Gillies Ministry on 26 February 1925 when Theodore followed his predecessor into federal politics.
On 22 October 1919, 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.
| Office | Minister | |
|---|---|---|
| Premier Chief Secretary Treasurer (until 9 March 1920) | Ted Theodore | |
| Deputy Premier Treasurer (from 9 March 1920) (until 7 April 1920:) Minister of Justice Secretary for Railways (from 7 April 1920:) | John Fihelly | |
| Secretary for Mines | Alfred Jones, MLC | |
| Secretary for Agriculture and Stock | William Gillies | |
| Home Secretary | William McCormack | |
| Secretary for Public Lands | Harry Coyne | |
| Secretary for Public Instruction | John Huxham | |
| Secretary for Public Works (until 7 April 1920) Secretary for Railways (from 7 April 1920) | James Larcombe | |
| Minister without portfolio | John Mullan |
The ministry was reconstituted on 12 November 1920 following the 1920 election.
| Office | Minister | |
|---|---|---|
| Premier Chief Secretary Treasurer (from 8 February 1922) Secretary for Public Works (8 February – 6 October 1922) | Ted Theodore | |
| Deputy Premier Treasurer Secretary for Public Works | John Fihelly (until 8 February 1922) | |
| Secretary for Agriculture and Stock | William Gillies | |
| Home Secretary | William McCormack | |
| Secretary for Mines | Alfred Jones, MLC | |
| Attorney-General | John Mullan | |
| Secretary for Railways | James Larcombe | |
| Secretary for Public Lands | Harry Coyne | |
| Secretary for Public Instruction | John Huxham | |
| Minister without portfolio (until 6 October 1922) Secretary for Public Works (from 6 October 1922) | William Forgan Smith (from 16 December 1920) | |
| Minister without portfolio | James Stopford (from 6 October 1922) |
On 2 July 1923, the Governor, Sir Matthew Nathan, designated nine principal executive offices of the Government, and appointed the following Members of the Parliament of Queensland to the Ministry.
| Office | Minister | |
|---|---|---|
| Premier Chief Secretary Treasurer | Ted Theodore | |
| Deputy Premier Secretary for Agriculture and Stock | William Gillies | |
| Secretary for Public Lands | William McCormack | |
| Secretary for Mines | Alfred Jones | |
| Attorney-General | John Mullan | |
| Secretary for Railways | James Larcombe | |
| Secretary for Public Instruction | John Huxham (until 14 July 1924) | |
| Secretary for Public Works | William Forgan Smith | |
| Home Secretary | James Stopford | |
| Minister without portfolio (until 14 July 1924) Secretary for Public Instruction (from 14 July 1924) | Frank Brennan | |
| Minister without portfolio | Mick Kirwan (from 14 July 1924) |
. Colin Hughes. Graham, B. D. . A handbook of Australian government and politics, 1890-1964. 1968. Australian National University. Canberra. 0-7081-0270-0. 178.