Rd is an abbreviation for road.

RD or Rd may also refer to:

Arts, entertainment, and media

  • Reader's Digest, a United States general-interest magazine
  • Real Drive, an anime by Production I.G
  • RD (group), a British girl group also known as Ruff Diamondz
  • Rilindja Demokratike, an Albanian newspaper
  • Razor Dolls, an online blogging group based on SpaceHey and Instagram
  • Rainbow Dash, one of the six main characters of My Little Pony: Friendship Is Magic

People

  • R. D. Blackmore, English novelist
  • R. D. Burman, Indian musician
  • R. D. Laing, British psychiatrist
  • R. D. Matthews, Texan organized crime figure
  • R.D. Riccoboni, painter

Businesses and organizations

  • Pratt & Whitney Rocketdyne, a United States rocket engine company
  • Ryan International Airlines (IATA airline designator RD)
  • USDA Rural Development, an agency of the United States Department of Agriculture

Language

  • ‹rd›, a Latin alphabet digraph of a retroflex stop in Aboriginal Australian languages
  • rd, an English-language ordinal indicator, for ordinal numbers ending in "third" (e.g. 3rd, 23rd, 33rd)

Military

  • Emblem for Reserve Force Service or Reserve Decoration, an award of the South African National Defense Force Military Reserve
  • Repair Depot (e.g., 6 Repair Depot), in military use
  • Reserve Decoration, an award for service in the Royal Navy Reserve of the United Kingdom

Positions and titles

  • Resident director, a common staff position at universities and colleges with on-campus housing
  • Rural dean, an ecclesiastical title in Anglicanism
  • Reverendo Don, the Italian written form of address for Catholic priests, equivalent to the English “Reverend Father”

Science, technology, and mathematics

Computing

  • Rata Die, a calendar-independent system to assign numbers to calendar dates
  • Rate–distortion optimization, a decision algorithm used in video compression
  • Rider (software), a cross-platform IDE intended for C# and .NET development
  • rmdir, a shell command meaning "remove directory"
  • Route distinguisher, in data networking, a concept in Multiprotocol Label Switching
  • Ruby Document format, a markup language used for documentation of Ruby programs

Health and medicine

  • Restrictive dermopathy
  • Reading disability, a condition resulting primarily from neurological factors
  • Registered Dietitian, an expert in dietetics
  • Retinal detachment, a disorder of the eye
  • Risk difference, a term in epidemiology related to absolute risk reduction

Other uses in science, technology, and mathematics

  • R<sup>d</sup>, the mathematical domain of real numbers
  • Reaktivniy Dvigatel, a Soviet Russian prefix for an engine design series (literally, "reactive engine"; see RD-8 for example)
  • Research and development
  • Rutherford (unit), a unit of radioactivity

Transportation

  • Red Line (Washington Metro)
  • Richmond and Danville Railroad

Other uses

  • Dominican Republic, a Caribbean country
  • Dominican peso (currency symbol: RD$)
  • rd, a round or cartridge of ammunition
  • Recurring deposit
  • Regional district
  • Rural delivery service, mail delivery in what are traditionally considered rural areas in the United States

See also

  • Remote desktop (disambiguation)