TT-Line GmbH is a shipping company based in Lübeck, Germany, which has been providing ferry service between Travemünde in Schleswig-Holstein and Trelleborg in southern Sweden since 1962. Since 1992, it has also operated a service from Rostock to Trelleborg (until 1997 marketed as TR-Line) and from Swinoujscie in Poland. As of 2007, TT-Line possesses six ferries. In 1978, TT-Line acquired 50% of Olau Line and purchased the rest of the company in 1979. TT-Line remained the sole owner of Olau Line until the line's closure in 1994.
