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 until his resignation in 1974. The only president to resign from the office, he previously served as the nation's 36th vice president from 1953 to 1961, and as a representative and senator from California.
Robyn Rihanna Fenty ( ree-AN-ə; born February 20, 1988) is a Barbadian singer, fashion designer, actress, and businesswoman, who has been recognized for embracing various musical styles and reinventing her image throughout her career.
River Jude Phoenix (né Bottom; August 23, 1970 – October 31, 1993) was an American actor, musician, and animal activist.
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.
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 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.