Ru, ru, or RU may refer to:

Russia

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

(ISO 3166-1 alpha-2 country code) *

Russian language Russian is an East Slavic languages, East Slavic language belonging to the Balto-Slavic languages, Balto-Slavic branch of the Indo-European languages, Indo-European language family. It is one of the four extant East Slavic languages, and is ...

(ISO 639 alpha-2 code) * .ru, the Internet country code top-level domain for Russia

China

* Rù (入), the

entering tone A checked tone, commonly known by the Chinese calque entering tone, is one of the four syllable types in the phonology of Middle Chinese. Although usually translated as "tone", a checked tone is not a tone in the western phonetic sense but rather ...

in Chinese language phonetics * Rú (儒), a Chinese language term for

Confucianism Confucianism, also known as Ruism or Ru classicism, is a system of thought and behavior originating in ancient China, and is variously described as a tradition, philosophy, Religious Confucianism, religion, theory of government, or way of li ...

* Ru (surname) (茹), a Chinese surname * Ru River (汝), in Henan, China *

Ru ware Ru ware, Ju ware, or "Ru official ware" () is a famous and extremely rare type of Chinese pottery from the Song dynasty, produced for the imperial court for a brief period around 1100. Fewer than 100 complete pieces survive, though there are ...

, a type of Chinese pottery

Educational institutions

* Rajasthan University in Rajasthan, India *

Radboud University Nijmegen Radboud University (abbreviated as RU, , formerly ) is a public university, public research university located in Nijmegen, Netherlands. RU has seven faculties and more than 24,000 students. Established in 1923, Radboud University has consistentl ...

, in Nijmegen, Netherlands *

Radford University Radford University is a public university in Radford, Virginia, United States. It is one of the state's eight doctorate-granting public universities. Founded in 1910, Radford offers curricula for undergraduates in more than 100 fields, graduate ...

, in Virginia, USA * Rai University in Gujarat, India *

Rajshahi University The University of Rajshahi (), also known as Rajshahi University (RU), is a Public university, public research university located in Rajshahi, Bangladesh. It is the second oldest and third largest university in Bangladesh. The university's 59 ...

in Bangladesh * Rama University in India * Ramkhamhaeng University in Thailand * Rangoon University in Burma *

Regis University Regis University ( ) is a Private university, private List of Jesuit educational institutions, Jesuit university in Denver, Colorado, United States. Founded in 1877 by the Jesuits, Society of Jesus, the university offers more than 120 degrees th ...

in Colorado, USA *

Reykjavík University Reykjavík University (RU; , , ) is the largest private university in Iceland with approximately 3,300 students. It is Charter school, chartered by the Chamber of Commerce, the Federation of Icelandic Industries, and the Confederation of Icelandi ...

Iceland *

Rhodes University Rhodes University () is a public research university located in Makhanda (formerly Grahamstown) in the Eastern Cape Province of South Africa. It is one of four universities in the province. Established in 1904, Rhodes University is the prov ...

in Grahamstown, South Africa *

Rockefeller University The Rockefeller University is a Private university, private Medical research, biomedical Research university, research and graduate-only university in New York City, New York. It focuses primarily on the biological and medical sciences and pro ...

in New York, USA * Rockhurst University in Missouri, USA *

Roosevelt University Roosevelt University is a private university in Chicago, Illinois, United States. Founded in 1945, the university was named in honor of United States President Franklin Delano Roosevelt and First Lady Eleanor Roosevelt. The university enrolls arou ...

in Chicago, Illinois, USA *

Rowan University Rowan University is a public research university in Glassboro, New Jersey, with a medical campus in Stratford and medical and academic campuses in Camden. Founded in 1923 as Glassboro Normal School on a site donated by 107 residents, the scho ...

in New Jersey, USA *

Ruse University "Angel Kanchev" University of Ruse () is a public university in the city of Ruse, Bulgaria. The university was formed on 21 July 1995 by the dissolution of Higher Institute of Mechanical Engineering, Mechanisation and Electrification of Agricult ...

in Bulgaria *

Rutgers University Rutgers University ( ), officially Rutgers, The State University of New Jersey, is a Public university, public land-grant research university consisting of three campuses in New Jersey. Chartered in 1766, Rutgers was originally called Queen's C ...

in New Jersey, USA *

Ryerson University Toronto Metropolitan University (TMU, or Toronto Met), formerly Ryerson University, is a public research university located in Toronto, Canada. The university's core campus is situated within the Garden District in downtown Toronto, although i ...

, the former name of Toronto Metropolitan University in Ontario, Canada

Science and technology

Resource Unit Resource Unit (RU) is a unit in OFDMA terminology used in 802.11ax WLAN to denote a group of 78.125 kHz bandwidth subcarriers (tones) used in both DownLink (DL) and UpLink (UL) transmissions. With OFDMA, different transmit powers may be app ...

, a unit used in 802.11 wireless *

Rack unit A rack unit (abbreviated U or RU) is a unit of measure defined as . It is most frequently used as a measurement of the overall height of 19-inch and 23-inch rack frames, as well as the height of equipment that mounts in these frames, whereby th ...

, a measurement of the height of electronic equipment commonly installed in 19-inch racks *

Ruthenium Ruthenium is a chemical element; it has symbol Ru and atomic number 44. It is a rare transition metal belonging to the platinum group of the periodic table. Like the other metals of the platinum group, ruthenium is unreactive to most chem ...

, symbol Ru, a chemical element * The "backwards-R U"

Recognized Component Mark The UL enterprise is a global private safety company headquartered in Northbrook, Illinois, composed of three organizations, UL Research Institutes, UL Standards & Engagement and UL Solutions. Established in 1894, the UL enterprise was founded as ...

of Underwriters Laboratories

Transport

AirBridge Cargo AirBridgeCargo Airlines, LLC (), part of Volga-Dnepr Group, was the largest Russian cargo airline, with its head office in Moscow. It operated scheduled cargo services on routes between Russia, Asia, Europe and North America, covering more than ...

(IATA airline code) *

Renigunta Junction railway station Renigunta Junction railway station (station code: RU) is a railway station located in Tirupati district in the Indian state of Andhra Pradesh. It serves Tirupati city and its suburban areas in Tirupati district. People alight here to go to Tiru ...

(Indian Railways station code)

Other uses

* ''

Reino Unido The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of the continental mainland. It comprises England, Scotland, Wales and North ...

'', the

Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many countries in the Americas **Spanish cuisine **Spanish history **Spanish culture ...

name of the United Kingdom * '' Royaume-Uni'', the French name of the United Kingdom * '' Regno Unito'', the

Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, a Romance ethnic group related to or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance languag ...

name of the United Kingdom * Ru (kana), the romanisation of the Japanese kana る and ル *

Ru (cuneiform) The cuneiform ru sign is found in both the 14th century BC Amarna letters and the ''Epic of Gilgamesh''. As ''ru'' it is used for syllabic ''ru'', and alphabetic 'r', or 'u'. In the I-XII Tablets of the ''Epic of Gilgamesh'', it has specific ...

, a sign in cuneiform writing * ''Ru'' (novel), a novel by Canadian novelist Kim Thúy * ''Ru ''(film), a film by Canadian director Charles-Olivier Michaud based on Kim Thúy's novel *

Ruanda-Urundi Ruanda-Urundi (), later Rwanda-Burundi, was a geopolitical entity, once part of German East Africa, that was occupied by troops from the Belgian Congo during the East African campaign in World War I and was administered by Belgium under milit ...

, former German and Belgian colony (today Rwanda and Burundi) *'' Rückkehr unerwünscht'' "return unwanted", a Nazi designation for concentration camp prisoners who were forbidden to be released *

RuPaul RuPaul Andre Charles (born November 17, 1960) is an American drag queen, television host, singer, producer, writer, and actor. He produces, hosts, and judges the reality competition series ''RuPaul's Drag Race'' and has received List of awards ...

, an American drag queen, actor, and television personality *