Silja Line is a Finnish cruiseferry brand operated by the Estonian ferry company AS Tallink Grupp, for car and passenger traffic between Finland and Sweden.The former company Silja Oy—today Tallink Silja Oy—is a subsidiary of the Tallink Grupp, handling marketing and sales for Tallink and Silja Line brands in Finland as well as managing Tallink Silja's ship employees. Another subsidiary, Tallink Silja AB, handles marketing and sales in Sweden.