Armorial of Ireland

This is a list of coats of arms of Ireland. In the majority of cases these are arms assigned to county councils created by the Local Government (Ireland) Act 1898 or later legislation, either by the Chief Herald of Ireland in what is now the Republic of Ireland or by the College of Arms in Northern Ireland. All but two county councils in the Republic have a coat of arms. In Northern Ireland, county councils were abolished in 1973, but the traditional arms are still occasionally used.

The arms of the county town have sometimes been used as an unofficial symbol of a county instead of those of its county council, or when the council had no arms. There are no official county flags. Flags with the GAA county colours serve as de facto county flags. County flags flown at Dublin Castle incorporate the county council arms, while those sold by the GAA county board include the county GAA crest. Coats of arms granted in recent decades often incorporate the GAA colours in the field.