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

https://drivers-license-irelandyoit926.laurelcurrent.com/posts/14-questions-you-re-refused-to-ask-driving-license-in-ireland

An Irish driving license is issued by the National Driver Licence Service (NDLS). Discover classifications, validity periods, and how to renew or replace a lost card.