311 series

The class 311 is a German small locomotive ; the "311" has been awarded twice so far, namely

• until 1979 for the class 311 small locomotives , formerly Kö I of the Deutsche Bundesbahn and
• after 1992 for the small locomotives of the class 311 of the Deutsche Bahn AG, previously the class 101 of the Deutsche Reichsbahn

This is a disambiguation page for differentiating between several terms identified with the same word.