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Rd or RD may refer to:

Arts and entertainment[edit]

Film and television[edit]



Other media[edit]

Businesses and organizations[edit]


Military decorations[edit]


Science, technology, and mathematics[edit]

Computing and mathematics[edit]

  • rd, also called rmdir, a shell command meaning "remove directory"
  • Rd, the mathematical domain of real numbers
  • Rata Die, a calendar-independent system to assign numbers to calendar dates
  • 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[edit]

Other uses in science and technology[edit]

Other uses[edit]

  • ‹rd›, a Latin alphabet digraph of a retroflex stop in Aboriginal Australian languages
  • Dominican peso (currency symbol RD$)
  • An English-language ordinal indicator, for ordinal numbers ending in "third" (e.g. 3rd, 23rd, 33rd)
  • Repair Depot (e.g., 6 Repair Depot), in military use
  • 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
  • Rural Delivery, mail delivery in what are traditionally considered rural areas in the United States