Ras (disambiguation)

RAS or Ras may refer to:

People and titles

 * Hans Ras (1926-2003), Dutch philologist
 * Rais, Urdu honorific for chieftain
 * Registered Accessibility Specialist
 * Rundfunk Anstalt Südtirol, a public broadcaster whose purpose is to relay programming from Germany, Austria, and Switzerland to the German-speaking population
 * Ras, an honorific used by members of the Rastafari movement
 * Ras, an Ethiopian aristocratic and court title, as in Ras Tafari

Locations

 * Stari Ras, first capital city of medieval Serbian state of Raska
 * Ras Tanura, city in eastern Saudi Arabia

Societies and groups

 * Royal Asiatic Society of Great Britain and Ireland, a society to further study into topics relating to science, literature, and the arts in relation to Asia
 * Royal Astronomical Society, British society founded in 1802
 * Royal Adelaide Show, Australian agricultural show
 * Russian Academy of Sciences
 * Russian Automobile Society, a member of the FIA

Medical terms

 * Ras (protein) implicated in development of cancer
 * Renal artery stenosis, anatomical term for the narrowing of the renal artery
 * Renin-angiotensin system, hormone system that regulates blood pressure
 * Reticular activating system, neurological system in the brain
 * RAS, for a recurrent aphthous ulcer
 * Rhythmic auditory stimulation
 * Retinoic Acid Syndrome

Science and technology

 * RAS, for Registration, Admission and Status, a telephony term
 * Radio Access Station, Apparutus in a portable internet system (Such as IEEE 802.16e)
 * .ras, the native raster format of the SunOS Unix operating system
 * Reliability, Availability and Serviceability, properties of information technology systems
 * Remote Access Service, combination of hardware and software for remote access to computing systems
 * Reusable Asset Specification, OMG Standard for packaging digital artifacts
 * Reflection anisotropy spectroscopy, an optical surface analysis tool

Transport

 * Roundabout Appreciation Society
 * Rail Adapter System; another name for the Picatinny rail system used for mounting accessories on modern firearms
 * RAS, for Replenishment at Sea, a method of Underway replenishment

Fiction and entertainment

 * RAS Records, a reggae record label
 * Ras, or Ra's, nickname for the fictional Batman villain Ra's al Ghul
 * Rescue Aid Society, a fictional society in the 1977 film The Rescuers
 * Nickname used by the Senior Knight of Inferia, Rassius Luine, from the PS1 game, Tales of Eternia

Other uses

 * RAS syndrome, Redundant Acronym Syndrome
 * Rás Tailteann, an annual cycling race in Ireland