Stobart Air was an Irish regional airline based in Dublin, originating in 1970 and closing in 2021. It operated scheduled services under the brands Aer Lingus Regional, BA CityFlyer and KLM Cityhopper on behalf of their respective owners. Stobart Air had operating bases in Cork, Dublin and Belfast for Aer Lingus Regional.

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.