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

https://how-to-get-driving-licence-in-irelandalhf891.summitviewdaily.com/posts/what-you-should-be-focusing-on-enhancing-driving-license-ie

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