As a sub academy player O'Mahony made his Munster debut as a replacement against the Sale Sharks in the pre-season game in Musgrave Park in August '09.
He made the move up to the Academy at the start of the 10/11 season.
The Limerick man played his schools rugby with Castletroy College and plays club rugby with Garryowen FC.
Representative honours include: Munster U18/19/20 and Munster A, and Ireland U18/19/20.
|DOB||28th May 1989|
|Height||1.80 m (5' 11")|
|Weight||82 kg (12 st 12 lb)|