MS Adonia (previously R Eight Minerva II and Royal Princess) is a cruise ship of the P&O Cruises fleet. The ship was built by Chantiers de l'Atlantique at their shipyard in St. Nazaire France. At 30 000 tonnes Adonia is the smallest of seven ships currently in service with P&O Cruises. She officially entered service with the company in May 2011 and was named by Dame Shirley Bassey.
Builders of the MV Adonia are Chantiers de l'Atlantique, France and Saint-Nazaire.