Revenue stamps of Ireland refer to the various revenue or fiscal stamps, whether adhesive, directly embossed or otherwise, which have been used on the island of Ireland since 1774. These include issues by the Kingdom of Ireland, issues by the United Kingdom specifically for use in Ireland or briefly Southern Ireland, and issues of an independent southern Ireland since 1922 (including the Provisional Government of Ireland, the Irish Free State and the Republic of Ireland). Revenue stamps of Northern Ireland were also issued from 1921 to the 1980s, but they are not covered in this article.