List of British flags
Date Use Description
1993 on Flag of Alderney A red cross on a white field ( St George 's Cross ) with an inescutcheon of the island 's coat of arms . Alderney is an autonomous Crown Dependency and is part of the Bailiwick of Guernsey
Government Ensign of Alderney A blue ensign with the arms of Alderney
1985 on Flag of Guernsey A golden cross within a red cross on a white field ( St George 's Cross ) . Guernsey is an autonomous Crown Dependency and is part of the Bailiwick of Guernsey
1985 on Civil Ensign of Guernsey A red ensign with a Gold Cross
1985 on State Ensign of Guernsey A blue ensign with a Gold Cross
Flag of Herm A red cross on a white field ( St George 's Cross ) with the coat of arms of the island in the canton . Herm is an island which belongs to the Bailiwick of Guernsey
1931 on Flag of the Isle of Man A triskelion on a red field
1971 on Civil Ensign of the Isle of Man A red ensign with a triskelion
1981 on Flag of Jersey A red saltire on a white field defaced with the island 's badge
2010 on Civil Ensign of Jersey A Red Ensign with the coat of arms of Jersey on
Government Ensign of Jersey A blue ensign with the arms of Jersey
1938 on Flag of Sark A red cross on a white field ( St George 's Cross ) with two lions ( the arms of the Plantagenet Dukes of Normandy ) in the canton . Strictly speaking , this was the personal flag of the Seigneur . Sark is an autonomous Crown Dependency and is part of the Bailiwick of Guernsey
Flag of Brecqhou Flag of Sark , defaced with the Brecqhou coat of arms
The Channel Islands and the Isle of Man ( Crown dependencies )
See also : Channel Islands and Isle of Man
This list includes flags that either have been in use or are currently used by the United Kingdom, British Overseas Territories and the Crown dependencies. The College of Arms is the authority on the flying of flags in England, Wales and Northern Ireland and maintains the only official register of flags for these countries. It was established in 1484 and as part of the Royal Household operates under the authority of the Crown. The Lord Lyon King of Arms holds a similar role within Scotland. A separate private body called the Flag Institute, financed by its own membership, also maintains a registry of United Kingdom flags that it styles 'the UK Flag Registry', though this has no official status under UK law.