- T Rex (1998)
- T Rex Uno (2007)
- Taars (1966)
- Tallink (1972)
- Tallink Autoexpress (1996)
- Tallink Autoexpress 2 (1997)
- Tallink AutoExpress 3 (1997)
- Tallink AutoExpress 4 (1996)
- Tamnara (1995)
- Tanger Express (1996)
- Tarak L (1974)
- Tarifa Jet (1997)
- Tariq Ibn Ziyad (1995)
- Tassili II (2004)
- Tehumardi (1973)
- Teistin (1969)
- Terje Vigen (1965)
- Terje Vigen (1972)
- Thalassitis (1988)
- The Lynx (2000)
- The Viking (1974)
- The Viking (1974) Kalle III
- Thjelvar (1955)
- Thjelvar (1981)
- Thjelvar (2019)
- Theodor (1957)
- Theodor Heuss (1957)
- Thor Heyerdahl (1974)
- Thor S (1978)
- Thor Sydfyen (1978)
- Tian E (1969)
- Tian Hu (1964)
- Tiger (1972)
- Tiiu (2017)
- Tinker Bell (2001)
- Tirta Kencana I (1972)
- Tom Sawyer (1989)
- Tor (1952)
- Tor Britannia (1975)
- Tor Scandinavia (1976)
- Trans-Asia 1 (1980)
- Transeuropa (1995)
- Transgermania (1976)
- Translandia (1976)
- Translübeca (1990)
- Transparaden (1976)
- TransRussia (1994)
- Tranøy (1990)
- Trapezitza (1980)
- Travemünde (1981)
- Travemünde Link (1981)
- Trelleborg (1982)
- Trinacria (2002)
- Trollfjord (2002)
- TT-Traveller (1992)
- Tuizidi (1968)
- Tunøfærgen (1993)
- Turella (1979)
- Tycho Brahe (1991)
- Tyrrel Bay Express (1962)
- Tysfjord (1993)
- Tzarevetz (1980)
- Tõll (2017)