Mount John Oliver is a 3123 m mountain in the Premier Range of the Cariboo Mountains in the east-central interior of British Columbia, Canada. The mountain is located on the divide between the Kiwa and Tete Creeks and is covered by a glacier. The name honours John Oliver, the Premier of British Columbia from 1921 to 1927. The mountain was named after Oliver in 1927 upon the dedication of the Premier Range as a memorial to British and Canadian heads of government. It is the only mountain in the Premier Range to be named after a provincial premier.