Aer Lingus Regional is an Aer Lingus brand which is used for commuter and regional flights. Aer Lingus Regional scheduled passenger services operate primarily from Ireland to the United Kingdom, France, and the Channel Islands, along with services from Belfast, Northern Ireland to the places mentioned. Services were operated by Aer Arann and then its successor Stobart Air until the latter's closure in June 2021. The contract for the franchise was then awarded to Emerald Airlines and services resumed on February 26, 2022.

Aer Lingus is the flag carrier of Ireland. Founded by the Irish Government, it was privatised between 2006 and 2015 and it is now a wholly owned subsidiary of International Airlines Group (IAG). The airline's head office is on the grounds of Dublin Airport in Cloghran, County Dublin.