Irish euro coins all share the same design by Jarlath Hayes, that of the harp, a traditional symbol for Ireland since the Middle Ages, based on that of the Brian Boru harp, housed in Trinity College, Dublin. The same harp is used as on the official seals of the Taoiseach, and government ministers and the Seal of the President of Ireland. The coins' design also features the 12 stars of the EU, the year of issue and the Irish name for Ireland, "Éire", in a traditional Gaelic script.

All Irish euro coins bear the same design on their obverse side: a Celtic harp based on the Trinity College Harp, flanked to the left and right by the word "ÉIRE" (Irish for Ireland) and the year the coin was struck, written in Gaelic type. These in turn are surrounded by the 12 stars of the flag of Europe. On the one-euro coin the stars appear on the gold coloured surround with the harp and words in the silver coloured centre. The colours are in the reverse for the two euro coin.

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