The Parliament of Canada is the federal legislature of Canada, seated at Parliament Hill in Ottawa, and is composed of three parts: the King, the Senate, and the House of Commons. By constitutional convention, the House of Commons is dominant, with the Senate rarely opposing its will. The Senate reviews legislation from a less partisan standpoint and may initiate certain bills. The monarch or his representative, normally the governor general, provides royal assent to make bills into law.

The monarchy of Canada is Canada's form of government embodied by the Canadian sovereign and head of state. It is one of the key components of Canadian sovereignty and sits at the core of Canada's constitutional federal structure and Westminster-style parliamentary democracy. The monarchy is the foundation of the executive (King-in-Council), legislative (King-in-Parliament), and judicial (King-on-the-Bench) branches of both federal and provincial jurisdictions. The current monarch is King Charles III, who has reigned since 8 September 2022.