If you are relocating to Ireland, you may be able to exchange your existing driving license
https://full-irish-driving-licencezltn831.theburnward.com/7-tips-to-make-the-most-of-your-how-to-get-drivers-to-license-in-ireland
If you are transferring to Ireland, you might be able to exchange your existing driving license. Inspect eligibility rules and needed documents for a smooth transfer.