Stena Sessan Line

Type	Private
Industry	Transport
Founded	1962
Headquarters	Gothenburg, Sweden
Key people	Carl-Johan Hagman (MD & CEO)
Products	Ferries, port services, passenger transportation, freight transportation, holidays, business travel
Revenue	12.0 billion SEK (2015)
Number of employees	5,000 (2015)
Website	www.stenaline.com

Stena Line is one of the largest ferry operators in the world. With services serving Denmark, Germany, Ireland, Latvia, the Netherlands, Norway, Poland, Sweden and the United Kingdom, Stena Line is a major unit of Stena AB, itself a part of the Stena Sphere. Stena Line also owns the Swedish vessels of the otherwise German- and Danish-owned Scandlines.

Stena Line was founded in 1962 by Sten A. Olsson in Gothenburg, Sweden, which still serves as the company's headquarters, when he acquired Skagenlinjen between Gothenburg and Fredrikshavn, Denmark.

In 1972, Stena Line was one of the first ferry operators in Europe to introduce a computer-based reservation system for the travel business area. In 1978, the freight business area also started operating a computer-based reservation system.

The first freight-only route started between Gothenburg, Sweden and Kiel, Germany. The ship was the MS Stena Transporter.

During the 1980s, Stena acquired three other ferry companies. In 1981, Sessan Line, Stena's biggest competitor on Sweden–Denmark routes, was acquired and incorporated into Stena Line. This included Sessan's two large newbuilds, Kronprinsessan Victoria and Prinsessan Birgitta, which became the largest ships operated by Stena by that date. In 1983, Stena acquired Varberg-Grenå Linjen, and two years later also the right to that company's former name, Lion Ferry. Lion Ferry continued as a separate marketing company until 1997, when it was incorporated into Stena Line. In 1989, Stena acquired yet another ferry company, Stoomvaart Maatschappij Zeeland (SMZ) (which at the time traded under the name Crown Line). SMZ's Hoek van Holland–Harwich route then became a part of Stena Line.