D53

D53 may refer to:
 * HMS Caledon (D53), a British Royal Navy ship
 * INS Ranjit (D53), an Indian Navy Rajput class destroyer
 * New South Wales D53 class locomotive, a class of 2-8-0 steam locomotive built for and operated by the New South Wales Government Railways of Australia
 * D53 (Croatia), a state road in Croatia