RI or ri may refer to:
Richard Milhous Nixon (January 9, 1913 – April 22, 1994) was an American politician who served as the 37th president of the United States from 1969 to 1974. He had previously served as the 36th vice president of the United States from 1953 to 1961, and prior to that as both a U.S.
Robyn Rihanna Fenty (; born February 20, 1988) is a Barbadian singer, businesswoman and actress. Born in Saint Michael and raised in Bridgetown, Rihanna was discovered by American record producer Evan Rogers in her home country in 2003. Throughout 2004, she recorded demo tapes under the direction of Rogers; this led to her securing a recording contract with Def Jam Recordings after she auditioned for its then-president, Jay-Z.
Richard I (8 September 1157 – 6 April 1199) was King of England from 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.
Sir Richard Starkey (born 7 July 1940), known professionally as Ringo Starr, is an English musician, singer, songwriter and actor who gained worldwide fame as the drummer for the Beatles.
Richard Morgan Fliehr (born February 25, 1949), better known as Ric Flair, is an American professional wrestling manager and retired professional wrestler signed to WWE under its Legends program.
Rio de Janeiro (; Portuguese: [ˈʁi.u d(ʒi) ʒɐˈne(j)ɾu]; River of January), or simply Rio, is anchor to the Rio de Janeiro metropolitan area and the second-most populous municipality in Brazil and the sixth-most populous in the Americas.
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.
Richard III (2 October 1452 – 22 August 1485) was King of England and Lord of Ireland from 1483 until his death.