RD

Rd or RD may refer to:

* Road, abbreviation
* , a tactics, turn based strategy RPG for the Wii
* Radical Dreamers, a text-based role playing game on the Satellaview made in 1996
* Rd (digraph)
* rd, a shell command meaning "remove directory"
* Reader's Digest
* Real Drive, an anime by Production I.G
* Reasonable Doubt, rapper Jay-Z's debut album
* Registered Dietitian
* Retinal Detachment
* Resident Director, a common staff position at universities and colleges with on-campus housing
* Rocketdyne
* Ruby Document format
* Rutherford (unit), symbol of a unit of radioactivity
* Ryan International Airlines, IATA airline designators
* Radio Disney
* Rural Development, an agency of the United States Department of Agriculture
* Red Dwarf
* Reserve Decoration, an award for service in the Royal Navy Reserve
* Reservoir Dogs
* RD, a Soviet/Russian prefix for an engine design series, stands for "Reaktivniy Dvigatel" (literally, Reactive Engine), see RD-8 for example

See also

* Ordinal indicator for 3 (that is, "3rd"), also known as an "ordinal suffix"
* R&D, Research and development
* , Wikipedia:Reference desk