Ru

Ru, ru, or RU may refer to:

• ISO 3166-1 alpha-2 country code for Russia
• Rù (入), the entering tone in Chinese language phonetics
• Rú (儒), a Chinese language term for Confucianism
• Ru (kana), the romanisation of the Japanese kana る and ル ; the same letters are used to substitute an L preceding a consonant when transliterating Latin script words to Katakana.
• Ru (river) (汝), a river in Henan
• Rack unit, a measurement of the height electronic equipment installed in 19 inch racks
• Rugby union
• the chemical symbol for the element ruthenium
• the IATA airline code for AirBridge Cargo
• the ISO 639 alpha-2 code for the Russian language
• .ru, the Internet country code top-level domain for Russia
• The "backwards-R U" Recognized Component Mark of Underwriters Laboratories

Educational institutions

RU may stand for the following universities:

• Radboud University Nijmegen, in Nijmegen, Netherlands
• Radford University, in Virginia, USA
• Rajshahi University in Bangladesh
• Ramkhamhaeng University in Thailand
• Regis University in Colorado, USA
• Reykjavík University Iceland
• Rhodes University in Grahamstown, South Africa
• Rockefeller University in New York, USA
• Rockhurst University in Missouri, USA
• Roosevelt University in Chicago, Illinois, USA
• Rowan University in New Jersey, USA
• Ruse University in Bulgaria
• Rutgers University in New Jersey, USA
• Ryerson University in Ontario, Canada