If you are moving to Ireland, you may be able to exchange your existing driving license

https://driving-license-irelandtije160.clearhavendigest.com/posts/5-myths-about-lost-drivers-license-in-ireland-that-you-should-stay-clear-of

If you are transferring to Ireland, you may have the ability to exchange your existing driving license. Inspect eligibility rules and required documents for a smooth transfer.