Class 19 may refer to:

• Caledonian Railway 19 Class, 0-4-4T steam locomotives
• Belgian Railways Class 19, electric locomotives
• British Rail Class 19, an experimental locomotive
• DRG Class 19, 2-8-2 express train, tender locomotives of the Deutsche Reichsbahn:
  • DRG Class 19.0
  • DRB Class 19.1
  • DRB Class 19.10
• GER Class T19
• KTM Class 19, diesel-electric shunting locomotives
• New South Wales Z19 class locomotive, 0-6-0 steam locomotives
• O 19-class submarine

• No.19 class minesweeper

This disambiguation page lists articles associated with the title Class 19.
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