The
Union Jack, or
Union Flag, is the
national flag of the United Kingdom. The flag also has an official or semi-official status in some other
Commonwealth realms; for example, it is, by law, an official flag in
Canada and known there as the
Royal Union Flag. Further, it is used as an official flag in some of the smaller
British overseas territories. The Union Jack also appears in the
canton (upper left-hand quarter) of the flags of several nations and territories that are former British possessions or
dominions.