She picked up the award at a glittering ceremony at the Radisson Blu Hotel in Letterkenny on Saturday night.
Fionnuala receive dNewbridge silverware including earrings, bracelet and necklace along with a night away in any hotel.
She was also crowned with a NewBridge tiara and Donegal Rose Sash and will go forward to the Regional Finals.
Maria McCole, the 2011 Donegal Rose and Tara Talbot, the overall Rose of Tralee winner were among the guests during a super night.
Funds raised last night are going to the Medical Stroke Rehabilitation Centre in St Conal’s Hospital.
Organisers thanked all of the sponsors including Ballylar Post Office, Tyneside Irish Centre, Silver Tassie Hotel, National Hair Academy, Dunnes Stores, Adara Toursim, R McCullagh Jewellers & Motivation.ie.
Pictured below: The Roses Breege Boyce, Claire McDermott, Fionnula Nic Giolla Bhain, Mary T Cairns, Stephaine Sweeney, Tara McDaid, Nuala McGroary and Victoria Smyth at the Donegal Rose of Tralee selecction night at the Radisson Blu Hotel