RD

Rd or RD may refer to:

Military

Reserve Decoration, an award for service in the Royal Navy Reserve of the United Kingdom
Reserve Decoration, Reserve Force Distinction or Decoration Emblem for Reserve Force Service ("RD" - post nominal letters), since 2003, awarded to South African National Defense Force Military Reserve members after 20 years service, at least five of which must have been in the Preserve Force

Radiant Dawn, a tactics, turn based strategy RPG for the Wii
Radical Dreamers, a text-based role playing game on the Satellaview made in 1996
Ratchet: Deadlocked, the fourth game in the Ratchet and Clank series
Real Drive, an anime by Production I.G
Reasonable Doubt, rapper Jay-Z's debut album
Red Dwarf, a British science fiction comedy franchise
Reservoir Dogs, a 1992 American film written and directed by Quentin Tarantino

Radio Disney, a California-based radio network with music and other content targeted to young people
RD, a fictional character in the anime Zoids: Fuzors
Reader's Digest, a popular general-interest magazine
ReDent, identi.ca's term for reblogging
RememberDestiny, a cosplay group from Belgium
Reader: the first rank of the clergy in the Orthodox Church.
Rilindja Demokratike, a newspaper in Albania.
Rainbow Dash, a fictional character in the television show "My Little Pony: Friendship is Magic"

Rate–distortion optimization, a decision algorithm used in video compression
Reaktivniy Dvigatel, a Soviet Russian prefix for an engine design series (literally, "reactive engine"; see RD-8 for example)
Rocketdyne, a United States rocket engine company
Rutherford (unit), a unit of radioactivity
R&D engineering — Research and development.

rd, also called rmdir, a shell command meaning "remove directory"
Ruby Document format, a markup language used for documentation of Ruby programs
Route distinguisher, in data networking, a concept in Multiprotocol Label Switching

Road
Dominican Republic
Repair Depot (for example, 6 Repair Depot)
Rural Delivery, mail delivery in what are traditionally considered rural areas in the United States
Red Deer

Reading Disability
Resident Director, a common staff position at universities and colleges with on-campus housing
Ritual Decalogue, a list called the "Ten Commandments" in Exodus 34 that deals mostly with imperatives of worship
Round of ammunition
Rassemblement démocrate, a political party in France
‹rd›, a Latin alphabet digraph of a retroflex stop in Aboriginal Australian languages
RD$, the Dominican peso
USDA Rural Development, an agency of the United States Department of Agriculture
Ryan International Airlines (IATA airline designator)
an English-language ordinal indicator, or suffix, to abbreviate ordinal numbers ending in "third" (3rd, 23rd, 33rd, etc.)