A viceroyalty is an entity headed by a viceroy.
In the scope of the Portuguese Empire, the term "Viceroyalty of Brazil" is also occasionally used to designate the colonial State of Brazil, in the historic period while its governors had the title of "Viceroy".
The administration over the vast territories of the Spanish Empire was carried out by viceroys, who became governors of an area, which was considered not as a colony but as a province of the empire, with the same rights as any other province in Peninsular Spain.
The Spanish Americas had four viceroyalties:
- The representative of the British executive in Ireland from the Williamite period until independence was known as the Viceroy of Ireland.