O'Neiro is a 52.7 m / 172′11″ luxury motor yacht. She was built by Golden Yachts in 2008.
With a beam of 9 m and a draft of 2.62 m, she has a steel hull and aluminium superstructure. This adds up to a gross tonnage of 564 tons.
She is powered by MTU engines of 2333 hp each giving her a maximum speed of 19 knots and a cruising speed of 16 knots. O'Neiro's maximum range is estimated at 3200 nautical miles.
The motor yacht can accommodate 14 guests in 7 cabins with an interior design by Giorgio Vafladis and an exterior design by Giorgo Vafladis.