''Finnstar'' may refer to two ships operated by
Finnlines
Finnlines Plc (, ) is a shipping operator of Roll-on/roll-off, ro-ro and passenger services in the Baltic Sea, the North Sea, and the Celtic Sea. It is a subsidiary of the Grimaldi Group. Finnlines’ sea transports are concentrated in the Balt ...
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* , a combination cruise ship/ferry operated 1979–1980
* , a ropax ferry operated from 2006 onwards
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Ship names