An Irish driving license is released by the National Chauffeur Licence Service (NDLS).

https://irishdrivinglicensezekw760.lakeviewbrief.com/posts/why-no-one-cares-about-driving-license-ie

An Irish driving license is released by the National Motorist Licence Service (NDLS). Discover categories, validity durations, and how to renew or replace a lost card.