Four additional services have been added, operated by Boeing 787 Dreamliner.
Etihad will operate up to 11 flights a week to the Irish capital this summer.
The additional flights will depart Dublin in the evening, complementing Etihad’s existing morning departure.
Its two-class 787s are configured with 28 business studios and 271 economy seats.
The new flights, departing Dublin at 7.45pm and arriving in Abu Dhabi at 6.30am (+1) will operate on Tuesdays, Thursdays, Saturdays and Sundays.
Etihad’s existing daily Dublin-Abu Dhabi route, departing Dublin at 9.35am, will continue as normal, operated by Boeing 777 aircraft.
Robin Kamark, Etihad chief commercial officer, said Ireland was an incredibly important market for the airline, offering onward connections to Asia, Africa, the Indian subcontinent and Australia.