Can you use American Express in Ireland?

Yes, American Express is accepted in Ireland. Many retailers, restaurants, and other businesses in Ireland accept American Express cards, although it may be less widely accepted than Visa and MasterCard. Some merchants may charge an additional fee for American Express transactions, so it's a good idea to check with the merchant before using your card. Additionally, some Irish ATMs may not accept American Express cards, so it's important to check the ATM's compatibility before attempting to use your card.