<P> 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 a ceremonial flag in Canada by parliamentary resolution , 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 Flag also appears in the canton ( upper left - hand quarter ) of the flags of several nations and territories that are former British possessions or dominions , as well as the state flag of Hawaii . </P>
<P> 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 a ceremonial flag in Canada by parliamentary resolution , 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 Flag also appears in the canton ( upper left - hand quarter ) of the flags of several nations and territories that are former British possessions or dominions , as well as the state flag of Hawaii . </P>
which country 's flag is known as the union jack
which country 's flag is known as the union jack
the United Kingdom
the United Kingdom