Alderney

National Flag

Anguilla

National Flag

1990

1865 Colonial Naval Defence Act

Ascension Island

National Flag

Bermuda

National Flag

British Antarctic Territory

National Flag

British Indian Ocean Territory

National Flag

British Virgin Islands

National Flag

Cayman Islands

National Flag

England

St George's Cross

National Flag

1348

Traditional

Unknown

Falkland Islands

National Flag

Gibraltar

National Flag

Guernsey

National Flag

Isle of Man

National Flag

Jersey

National Flag

Montserrat

National Flag

Pitcairn Islands

National Flag

Saint Helena

National Flag

Sark

National Flag

Scotland

St Andrew's Cross

National Flag

1286

Traditional* (See below)

Unknown

South Georgia and the South Sandwich Islands

National Flag

Tristan da Cunha

National Flag

Turks and Caicos Islands

National Flag

United Kingdom

Union Flag or Union Jack

National Flag

1st January 1801

Act of Parliament

College of Arms

Wales

Red Dragon

National Flag

February 1959

Royal Decree

Unknown