Flag of Ireland – Wikipedia

The national flag of Ireland (Irish: bratach na hÉireann), frequently referred to in Ireland as ‘the tricolour’ (an trídhathach) and elsewhere as the Irish tricolour, is a vertical tricolour of green (at the hoist), white and orange. [1][2] The proportions of the flag are 1:2 (that is to say, flown horizontally, the flag is half as high as it …

https://en.wikipedia.org/wiki/Flag_of_Ireland