List of notable Irish buildings includes buildings in Ireland that are currently in-use which are landmarks of historical, cultural or governmental significance. For ruins, see National monuments of Ireland.

• Albert College Building, Dublin, 1851
• Aldborough House and The Lord Amiens Theatre, Dublin, 1795
• American Embassy, Dublin
• Áras an Uachtaráin, Dublin
• Ardbraccan House, County Meath
• Blarney Castle, County Cork
• Busaras, Dublin
• Carton House, County Kildare
• The Casino at Marino, Dublin
• Clarion Hotel, Limerick
• Christ Church Cathedral, Dublin
• City Hall, Dublin
• College Green, Dublin
• Convention Centre Dublin
• The Custom House, Dublin, 1791
• Dr Steevens' Hospital, Dublin, 1733
• Dublin Castle
• Farmleigh, Irish state guesthouse
• The Four Courts, Dublin
• General Post Office or GPO, Dublin
• Government Buildings, Dublin
• Grand Canal Theatre, Dublin
• Headfort House, Kells, County Meath
• The Incorporated Law Society, previously The Blue Coat School, Blackhall Place, Dublin, 1783
• The Old Parliament House to 1800
• Iveagh House, Dublin
• Kilkenny Castle, Kilkenny
• Kilmainham Jail, Dublin
• King's Inns, Dublin
• Leinster House, Dublin
• Liberty Hall, Dublin
• Malahide Castle, County Dublin
• Mansion House, Dublin
• St. Doulagh's Church, Dublin, built in the 5th century, renovated in the 12th century
• St. Mary's Church, Dublin, 1627
• St. Michan's Church, Dublin, 1095
• Muckross House, County Kerry
• The National Aquatic Centre, Dublin
• The National Concert Hall, Dublin
• St. Nicholas' Collegiate Church, Galway
• St. Patrick's Cathedral, Dublin
• St. Stephens' Church, Dublin - better known to Dubliners as "The Pepper Canister".
• Powerscourt House and demesne, County Wicklow
• Powerscourt Townhouse Centre, Dublin
• Riverpoint, Limerick
• Russborough House, County Wicklow
• The Rotunda Hospital, Dublin, 1757
• The Helix, Glasnevin, Dublin
• Royal Hospital Kilmainham, Dublin
• Thoor Ballylee, County Galway
• Trinity College Dublin