A boat train is a passenger train operating to a port for the specific purpose of making connection with a passenger ship, such as a ferry, ocean liner, or cruise ship. Through ticketing is normally available.

• Admiraal de Ruijter, London Liverpool Street – Amsterdam Centraal (1987–2006)
• Benjamin Britten, London Liverpool Street – Amsterdam Centraal (1987–?)
• La Flèche d'Or (Golden Arrow), Paris Gare du Nord – Calais-Maritime (1929–1972)^[1]
• The Golden Arrow, London Victoria – Dover Marine (1929–1972)^[1]
• The Cunarder
  • London Waterloo – Southampton Docks (Ocean Terminal)
  • London Euston – Liverpool Riverside
  • Glasgow Central – Greenock Prince’s Pier
• Night Ferry, London Victoria – Paris Nord / Brussels Midi/Zuid (1936–1980)
• The Statesman, London Waterloo – Southampton Docks (Ocean Terminal)^[2]
• The Steam Boat, Toronto – Port McNicoll

• Train ferry, which carries rail vehicles as well as passengers
• Dutchflyer, London to Amsterdam
• Lyttelton Line Boat trains, New Zealand
• On the Wigan Boat Express, a song
• Venice-Simplon Orient Express, London to Paris and beyond