If you are moving to Ireland, you might be able to exchange your existing driving license
https://ireland-driving-licensevbze706.ironwoodscope.com/posts/how-to-get-a-driving-license-in-ireland-what-s-no-one-is-talking-about
If you are transferring to Ireland, you may be able to exchange your existing driving license. Inspect eligibility rules and needed paperwork for a smooth transfer.