The Colebatch Ministry was the 14th Ministry of the Government of Western Australia and was led by Nationalist Premier Hal Colebatch. It succeeded the Lefroy Ministry on 17 April 1919 after Sir Henry Lefroy's resignation as premier. Colebatch, a member of the Legislative Council and the first (and so far only) from that chamber to ever be asked to form a ministry, had the problem of finding a conveniently-located country seat which was not held by the Country Party. Before he could consolidate his leadership, his handling of the "Battle of the Barricades" on the waterfront severely damaged his standing and he stood aside. On 17 May 1919, the First Mitchell Ministry was formed by the Minister for Lands, James Mitchell.

The following ministers served for the duration of the Ministry:

OfficeMinister
Office Minister Premier Colonial Treasurer Minister for Education Minister for Railways Hal Colebatch, MLC Minister for Lands James Mitchell, MLA Colonial Secretary Charles Hudson, MLA Minister for Works Minister for Water Supply William George, MLA Attorney-General Minister for Mines Minister for Forests Minister for Industries Robert Robinson, MLA Minister for Agriculture Charles Baxter, MLC Minister without portfolio Francis Willmott, MLALegend: Nationalist Party Country Party National Labor Party
Premier Colonial Treasurer Minister for Education Minister for RailwaysHal Colebatch, MLC
Minister for LandsJames Mitchell, MLA
Colonial SecretaryCharles Hudson, MLA
Minister for Works Minister for Water SupplyWilliam George, MLA
Attorney-General Minister for Mines Minister for Forests Minister for IndustriesRobert Robinson, MLA
Minister for AgricultureCharles Baxter, MLC
Minister without portfolioFrancis Willmott, MLA
Nationalist Party
Country Party
National Labor Party
Preceded byLefroy MinistryColebatch Ministry 1919Succeeded byFirst Mitchell Ministry