H class

H class or Class H may refer to:

Railway locomotives

 * Barry Railway Class H, 0-8-2T tank locomotives
 * NZR H class, steam locomotives used by the New Zealand Railways Department
 * Metropolitan Railway H Class, 4-4-4T steam locomotives
 * Palestine Railways H class, steam locomotives
 * SECR H class, 0-4-4T locomotives designed by Harry Wainwright
 * Taff Vale Railway H class, 3 0-6-0T steam tank locomotives
 * Victorian Railways H class, 4-8-4 steam locomotives used in Australia
 * Victorian Railways H class (diesel), diesel locomotives
 * WAGR H class, steam locomotives
 * WAGR H class (diesel), diesel electric locomotives

Trams

 * H type Adelaide tram
 * H-class Melbourne tram
 * H-class Sydney tram

Ship types

 * H-class destroyer, British destroyer class which served during World War II
 * H-class battleship proposals, multiple planned, but cancelled, German battleship classes during World War II
 * H-class lifeboat, RNLI hovercraft lifeboats
 * H-class submarine (disambiguation), multiple classes

Other uses

 * H-class blimp, observation airships built for the U.S. Navy
 * Class H, a class of electronic amplifiers