This category includes all historic constituencies within the territory of the current state of Ireland from 1918 on. In the case of the First Dáil, they were constituencies created for the House of Commons of the United Kingdom. In the case of the Second Dáil, they were created for the House of Commons of Southern Ireland. Only Sinn Féin members took their seats as TDs in the First and Second Dáil, but all constituencies were listed on the roll of Dáil Éireann as constituencies for these body and are included here. For constituencies in Northern Ireland for the first two Dála, see Category:Dáil constituencies in Northern Ireland (historic).