The First Collier Ministry was the 16th Ministry of the Government of Western Australia and was led by Labor Premier Philip Collier. It succeeded the First Mitchell Ministry on 16 April 1924, following the defeat of the Nationalist government at the 1924 election on 22 March.
The ministry was followed by the Second Mitchell Ministry on 23 April 1930 after the Labor Party lost government at the state election held on 26 March.
The following ministers served until the reconstitution of the Ministry on 30 April 1927, following the 1927 state election:
| Office | Minister |
|---|---|
| Philip Collier, MLA | |
| William Angwin, MLA | |
| Michael Troy, MLA | |
| John Willcock, MLA | |
| Alick McCallum, MLA | |
| John Drew, MLC | |
| Minister without portfolio | James Hickey, MLC |
| James Cunningham, MLA | |
| Selby Munsie, MLA |
The following ministers served from their appointment on 30 April 1927 until the end of the Ministry on 23 April 1930, following the 1930 state election:
| Office | Minister |
|---|---|
| Philip Collier, MLA | |
| John Willcock, MLA | |
| Michael Troy, MLA | |
| Selby Munsie, MLA | |
| Harry Millington, MLA (from 15 December 1927) | |
| Alick McCallum, MLA | |
| John Drew, MLC | |
| James Cunningham, MLA (from 15 December 1927) | |
| Minister without portfolio | James Hickey, MLC (until 21 May 1928) |
| William Kitson, MLC (from 25 June 1928) | |
| Harry Millington, MLA (until 15 December 1927) | |
| James Cunningham, MLA (until 15 December 1927) |
