The national flag of Ireland is a vertical tricolour of green, white, and orange.

The Irish government has described the symbolism behind each colour as being that "green stands for the older Gaelic tradition while the orange stands for the supporters of William of Orange. The white in the centre signifies a lasting truce between the 'Orange' and the 'Green'.

Presented as a gift in 1848 to Thomas Francis Meagher from a small group of French women sympathetic to the Irish cause, it was not until the Easter Rising of 1916, when it was raised above the General Post Office in Dublin, that the tricolour was seen as the national flag.