D55 may refer to:
roads in various countries: D55 road (Croatia), a state route in Croatia D55 motorway in the Czech Republic HMAS Parramatta (D-55), a 1910 River class torpedo boat destroyer from the Australian Navy two ships of the Royal Navy : , a 1943 Bogue-class auxiliary aircraft carrier , a Battle-class destroyer , a 1988 Rajput class destroyer from the Indian Navy CIE Standard Illuminant D55, a lighting standard used in colorimetry and also: Robertson Field (North Dakota) FAA code New South Wales D55 class locomotive, a NSWGR steam locomotive