Saint Vincent and the Grenadines / Queen Elizabeth II

The monarchy of Saint Vincent and the Grenadines is the constitutional system of government in which a hereditary monarch (shared with a number of other Commonwealth countries) is the sovereign of Saint Vincent and the Grenadines, forming the core of the country's Westminster-style parliamentary democracy. The Crown is thus is the foundation of the executive, legislative, and judicial branches of the Vincentian government.

While Royal Assent and the royal sign-manual are required to enact laws, letters patent, and orders in council, the authority for these acts stems from the Vincentian populace, and, within the conventional stipulations of constitutional monarchy, the sovereign's direct participation in any of these areas of governance is limited, with most related powers entrusted for exercise by the elected and appointed parliamentarians, the ministers of the Crown generally drawn from amongst them, and the judges and Justices of the Peace.

Queen Elizabeth II was the first monarch, and reigned until her death on 8 September 2022.