The term United Kingdom can refer to the following.

British Isles

• The Kingdom of Great Britain (1707–1801)
• The United Kingdom of Great Britain and Ireland (1801–1927)
• The United Kingdom of Great Britain and Northern Ireland (1927–present)

See also: British Isles (terminology)

Scandinavia

• The Kalmar Union which united the kingdoms of Norway, Sweden and Denmark (1397–1520)
• The United Kingdom of Denmark-Norway
• The United Kingdom of Sweden-Norway (1814–1905)

Others

• The United Kingdom of Portugal, Brazil, and the Algarve in the early 19th century.
• The United Kingdom of the Netherlands (1815–1830, though formally only disbanded in 1839)
• The United Kingdom is also a name for the ancient Israelite Kingdom of King David and his son Solomon—more commonly termed the United Monarchy, it later split into the Kingdom of Israel and the Kingdom of Judah.

See also Political union and Personal union.

Royaume-Uni (homonymie)