M/S Princesa Marissa is a cruise ship owned and operated by the Cyprus-based Louis Cruise Lines. She was built in 1966 by Wärtsilä Helsinki New Shipyard, Helsinki, Finland as the RORO car/passenger ferry M/S Finnhansa for Finnlines, Finland. The ship has also sailed under the colours of Birka Line as M/S Prinsessan.

Kos, Greece; in October 2007.