If you are relocating to Ireland, you might be able to exchange your existing driving license

https://irishdrivinglicenseirrc493.moderncairn.com/posts/10-reasons-that-people-are-hateful-to-ireland-driving-licence-ireland-driving-licence

If you are transferring to Ireland, you may be able to exchange your existing driving license. Inspect eligibility guidelines and needed documents for a smooth transfer.