The national flag of the United Kingdom is the Union Jack, also known as the Union Flag. The design of the Union Jack dates back to the Act of Union 1801, which united the Kingdom of Great Britain and the Kingdom of Ireland (previously in personal union) to create the United Kingdom of Great Britain and Ireland.

The Union Jack[2][3] or Union Flag is the de facto national flag of the United Kingdom. The Union Flag was also used as the official flag of several British colonies and dominions before they adopted their own national flags.

Four stripes of white, horizontal, diagonal, and vertical on a blue field, with a red cross in the middle. The flag of Great Britain, often referred to as the King's Colour, first Union Flag, [1][2] Union Jack, and British flag, was used at sea from 1606 and more generally from 1707 to 1801.

flag of the United Kingdom red, white, and blue flag in which are combined the Crosses of St. George (England), St. Andrew (Scotland), and St. Patrick (Ireland).

The Union Flag, or Union Jack, is the national flag of the United Kingdom. It is so called because it combines the crosses of the three countries united under one Sovereign - the kingdoms of England and Wales, of Scotland and of Ireland (although since 1921 only Northern Ireland has been part of the United Kingdom).

The Union Flag is the national flag of the United Kingdom. It has had the same design since the Act of Union 1800. The flag is made from the flags of the kingdoms of England, Scotland, and Ireland. The common ratio that used by the government and other institutions are 1:2.

Flag of the United Kingdom - also known to the British as a Union Jack, has been used since 1603 when the Scottish King James VI became the king of England. The symbolism of the flag …

The National Flag of the United Kingdom (Union Jack) features a blue background with the centered red cross edged in white; the country uses Pound sterling as its official currency; and its national anthem is "God Save the Queen"

The current flag, also known as the Union Jack or Union Flag, is a representation of this unification. It was adopted on January 1, 1801, and consists of a red cross for St George, the Patron of England, superimposed on the white cross of St. Patrick, the patron of Ireland.

The national flag of the United Kingdom of Great Britain and Northern Ireland, consisting of the red cross of the flag of England, the diagonal white cross of Scotland, and the red of Ireland, is commonly known as the Union Jack.