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

https://irish-driving-licensetlfa119.oakridgedigest.com/posts/what-do-you-think-heck-what-exactly-is-how-to-get-driving-licence-in-ireland

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