Q class

Q Class or Class Q may refer to:

Rail transport

• GNRI Class Q, a Great Northern Railway of Ireland locomotive class
• NZR Q class (1878), a New Zealand Railways locomotive class
• NZR Q class (1901), a New Zealand Railways locomotive class
• SR Class Q, a British Southern Railway locomotive class
• WAGR Q class (diesel)
• Q-class Melbourne tram

Other uses

• Library of Congress Classification:Class Q -- Science
• Q-class destroyer, a class of warships used by the Royal Navy, Royal Netherlands Navy, and Royal Australian Navy
• Classical Quarterly, abbreviated Class. Q.