Rd or RD may refer to:

Modern Society [link]

• Resource Drainer, a person who knowingly drains resources of any kind.

Media and entertainment [link]

• 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
• Radio Disney, a California-based radio network with music and other content targeted to young people
• Reasonable Doubt, rapper Jay-Z's debut album
• Real Drive, an anime by Production I.G
• RD, a fictional character in the anime Zoids: Fuzors
• Red Dwarf, a British science fiction comedy franchise
• Reservoir Dogs, a 1992 American film written and directed by Quentin Tarantino
• 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"

Science and technology [link]

• 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

Medicine [link]

• Retinal detachment, a disorder of the eye
• Registered Dietitian, an expert in food and nutrition

Mathematics [link]

• Rata Die, a calendar-independent system to assign numbers to calendar dates
• R^d, the mathematical domain of real numbers

Computing [link]

• 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

Geography [link]

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

Military [link]

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

Other [link]

• 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
• the IATA airline designator for Ryan International Airlines
• an English-language ordinal indicator, or suffix, to abbreviate ordinal numbers ending in "third" (3rd, 23rd, 33rd, etc.)

See also [link]

• Research and development, often abbreviated "R & D"

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.