RSO or R.S.O. may refer to:

Roles and titles

* Range safety officer, a person responsible for the safe use of rocket vehicles *

Radiation Safety Officer In the United States, the person within an organization responsible for the safe use of radiation and radioactive materials as well as regulatory compliance. An organization licensed by the Nuclear Regulatory Commission The Nuclear Regulatory Com ...

, a person responsible for the safe use of radiation and radioactive materials *

Regional Security Officer Regional Security Officer (RSO) is the title given to a special agent of the U.S. Diplomatic Security Service (DSS) who is in charge of a Regional Security Office. The RSO is the principal security attaché and advisor to the U.S. Ambassador at ...

, a Diplomatic Security Service Special Agent in charge of security at a US embassy *

Regional Security Office A Regional Security Office is the office at a U.S. Embassy or Consulate that oversees all functions of security. It is headed by a special agent of the U.S. Diplomatic Security Service (DSS) who has the title of Regional Security Officer (RSO). ...

, office in a US embassy or consulate for the Diplomatic Security Service * ', Knight of the Order of the Sword * Reconnaissance systems officer, operator of surveillance systems and equipment on a

Lockheed SR-71 Blackbird The Lockheed SR-71 "Blackbird" is a long-range, high-altitude, Mach 3+ strategic reconnaissance aircraft developed and manufactured by the American aerospace company Lockheed Corporation. It was operated by the United States Air Force ...

aircraft

Organisations

* "Radio Symphony Orchestra", used by a number of orchestras: **

Danish National Symphony Orchestra The Danish National Symphony Orchestra (Danish: ''DR Symfoniorkestret''; English abbreviation "DNSO"), is a Danish orchestra based in Copenhagen. The DNSO is the principal orchestra of DR (Danish Broadcasting Corporation). The DRSO is based at th ...

, based in Copenhagen, Denmark ** North German Radio Symphony Orchestra, based in Hamburg, Germany **

Stuttgart Radio Symphony Orchestra The Stuttgart Radio Symphony Orchestra (German: ''Radio-Sinfonieorchester Stuttgart des SWR'') was a German radio orchestra based in Stuttgart in Germany. History The ensemble was founded in 1945 by American occupation authorities as the orchest ...

, based in Stuttgart, Germany **

Bavarian Radio Symphony Orchestra The Bavarian Radio Symphony Orchestra (german: Symphonieorchester des Bayerischen Rundfunks, BRSO) is a German radio orchestra. Based in Munich, Germany, it is one of the city's four orchestras. The BRSO is one of two full-size symphony orchestr ...

, based in Munich, Germany **

Frankfurt Radio Symphony Orchestra The Frankfurt Radio Symphony (german: hr-Sinfonieorchester) is the radio orchestra of Hessischer Rundfunk, the public broadcasting network of the German state of Hesse. From 1929 to 1950 it was named ''Frankfurter Rundfunk-Symphonie-Orchester''. F ...

, based in Frankfurt, Germany **

Finnish Radio Symphony Orchestra The Finnish Radio Symphony Orchestra (Finnish: ''Radion sinfoniaorkesteri'', Swedish: ''Radions symfoniorkester'') is a Finnish broadcast orchestra based in Helsinki, and the orchestra of the Finnish Broadcasting Company (Yle). The orchestra prima ...

** Swedish Radio Symphony Orchestra ** Vienna Radio Symphony Orchestra *

Richardson Symphony Orchestra The Richardson Symphony Orchestra (RSO) is an American symphony orchestra based in Richardson, Texas. The orchestra is resident at the Charles W. Eisemann Center for Performing Arts. History The orchestra was founded in 1961. Maestro Clay ...

, based in Richardson, Texas *

Roanoke Symphony Orchestra The Roanoke Symphony Orchestra, also known as the "RSO", was established in 1953 by Gibson Morrissey and a number of other music lovers. Gibson Morrissey served as the conductor until his death in 1975. The Roanoke Symphony Orchestra has professi ...

, based in Roanoke, Virginia * Rogers Sportsnet Ontario, a television station in Ontario, Canada * RSO Records, a record label formed by Robert Stigwood in the late 1960s *

Rohingya Solidarity Organisation The Rohingya Solidarity Organisation (RSO) is a Rohingya insurgent group and political organisation. It was founded in 1982 following a large scale military operation conducted by the Tatmadaw (Myanmar Armed Forces). The group discontinued it ...

, a political organization and former insurgent group in Myanmar (Burma)

Military technology

* ''

Raupenschlepper, Ost ''Raupenschlepper Ost'' (German: "Caterpillar Tractor East", more commonly abbreviated to RSO) was a fully tracked, lightweight vehicle used by the Wehrmacht in World War II. It was conceived in response to the poor performance of wheeled and h ...

'', a fully tracked World War II German artillery tractor * ''

Radschlepper Ost ''Radschlepper Ost'', literally "wheeled tractor east", also known as Škoda RSO or Porsche 175, was a German heavy Four-wheel drive military tractor used during World War II. It was designed by Ferdinand Porsche in 1941 and produced by Škoda in ...

'', a wheeled World War II German artillery tractor

Other

Railway Sub Office A Railway Sub Office was an office of the British Royal Mail which received mail directly from a rail source for distribution to surrounding districts, without the mail having first been sent to a regional sorting office and forwarding. After the ...

(1855-1905), a British Royal Mail office which received mail directly from rail transport *

Reactive Search Optimization LIONsolver is an integrated software for data mining, business intelligence, analytics, and modeling and reactive business intelligence approach. A non-profit version is also available as LIONoso. LIONsolver is used to build models, visualize th ...

, problem-solving methods with integrated online machine-learning capabilities *

Revised Statutes of Ontario Revised Statutes of Ontario (RSO; French: Lois refondues de l'Ontario, LRO) is a consolidation of public acts in the province of Ontario. Each volume contains a consolidated version of all amended statutes in force, incorporating amendments passed ...

, the provincial laws of Ontario, Canada *

Registered sex offender A sex offender registry is a system in various countries designed to allow government authorities to keep track of the activities of sex offenders, including those who have completed their criminal sentences. In some jurisdictions, registration i ...

, a person listed on a sex offender registry * Republic of South Ossetia, a separatist organization in Georgia * Resident Space Object, any man-made object in Earth orbit no longer used by anyone * RSO, musical duo consisting of American musician

Richie Sambora Richard Stephen Sambora (born July 11, 1959) is an American rock guitarist, singer, songwriter and producer, best known as the lead guitarist of the rock band Bon Jovi from 1983 to 2013. He and lead singer Jon Bon Jovi formed the main songwri ...

and Australian musician Orianthi * Rick Simpson Oil, a form of cannabis concentrate *

Red Star OS Red Star OS () is a North Korean Linux distribution, with development first starting in 1998 at the Korea Computer Center (KCC). Prior to its release, computers in North Korea typically used Red Hat Linux and later switched to a modified Windows ...

, also abbreviated as RSOS, is a North Korean operating system {{disambig