The Government of Ontario is the body responsible for the administration of the Canadian province of Ontario. The term Government of Ontario refers specifically to the executive—political ministers of the Crown, appointed on the advice of the premier, and the non-partisan Ontario Public Service, who staff ministries and agencies to deliver government policies, programs, and services—which corporately brands itself as the Government of Ontario, or more formally, His Majesty's Government of Ontario.

The Executive Council of Ontario, often informally referred to as the Cabinet of Ontario, is the cabinet of the Canadian province of Ontario. It comprises ministers of the provincial Crown, who are selected by the premier of Ontario and appointed by the lieutenant governor. The activities of the Government of Ontario are directed by the Executive Council.