Yes, you can as long as you meet the CDW terms:
You must hold either a US issued World MasterCard or Canadian issued Gold/Platinum Visa and provide WRITTEN PROOF that the card has relevant coverage for THE REPUBLIC OF IRELAND. This letter must be dated no more than 21 days prior to arrival. If a relevant card and cover letter are not produced at the time of commencement of rental OR you have chosen an exclusive rate, and do not hold a credit card that will cover you for CDW, you will be charged for CDW on arrival at the local daily rate.