The Oliver ministry was the combined Cabinet (formally the Executive Council of British Columbia) that governed British Columbia from March 6, 1918, to August 7, 1927. It was led by John Oliver, the 19th premier of British Columbia, and was composed of members of the Liberal Party.
The Oliver ministry was established following the death of the previous Premier, Harlan Carey Brewster and the election of John Oliver as the leader of the Liberal Party and hence Premier. It governed for the remainder of the 14th Parliament of British Columbia and, after re-election in the 1920 and 1924 elections, the entirety of the 15th Parliament of British Columbia and the duration of the 16th Parliament of British Columbia up to John Oliver's death on August 17, 1927.