RI or Ri may refer to:
Robyn Rihanna Fenty (; February 20, 1988) is a Barbadian singer, songwriter, and actress. Born in Saint Michael, Barbados and raised in Bridgetown, during 2003 she recorded demo tapes under the direction of record producer Evan Rogers and signed a recording contract with Def Jam Recordings after auditioning for its then-president, hip hop producer and rapper Jay Z.
Richard Milhous Nixon (January 9, 1913 – April 22, 1994) was the 37th President of the United States from 1969 until 1974, when he resigned from office, the only U.S.
Rick and Morty is an American adult animated science-fiction sitcom created by Justin Roiland and Dan Harmon for Cartoon Network's late-night programming block Adult Swim.
Rio de Janeiro (; Portuguese pronunciation: [ˈʁi.u d(ʒi) ʒɐˈnejɾu]; River of January), or simply Rio, is the second-most populous municipality in Brazil and the sixth-most populous in the Americas.
Richard I (8 September 1157 – 6 April 1199) was King of England from 6 July 1189 until his death. He also ruled as Duke of Normandy, Aquitaine and Gascony, Lord of Cyprus, Count of Poitiers, Anjou, Maine, and Nantes, and was overlord of Brittany at various times during the same period.
The rings of Saturn are the most extensive planetary ring system of any planet in the Solar System. They consist of countless small particles, ranging from μm to m in size, that orbit about Saturn.
Richard Starkey, MBE (born 7 July 1940), known professionally as Ringo Starr, is an English drummer, singer, songwriter and actor who gained worldwide fame as the drummer for the Beatles.
Richard Phillips Feynman (; May 11, 1918 – February 15, 1988) was an American theoretical physicist known for his work in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics, and the physics of the superfluidity of supercooled liquid helium, as well as in particle physics for which he proposed the parton model.