The White Ensign or St George's Ensign is an ensign flown on British Royal Navy ships and shore establishments. It consists of a red St George's Cross on a white field with the Union Flag in the upper canton.
The White Ensign is also flown by the Royal Yacht Squadron and ships escorting the Queen.
In addition to the United Kingdom, several Commonwealth nations also have variants of the White Ensign with their own national flags in the canton, with the St George's Cross sometimes being replaced by a naval badge. The Flag of the British Antarctic Territory and the Commissioners' flag of the Northern Lighthouse Board are white ensigns, but omit the red St George's Cross.