The King's Representative is the official representative of Charles III, as King of the realm of New Zealand, in the Cook Islands. The office of King's Representative is established by the Constitution of the Cook Islands. They are appointed by the King for a term of three years, and may be reappointed. When the Cook Islands has a queen regnant, the viceroy is titled Queen's Representative.

The Parliament of the Cook Islands is the legislature of the Cook Islands. Originally established under New Zealand administration, it became the national legislature upon independence in 1965.