Ro or RO may refer to:
Romania ( ( listen) ro-MAY-nee-ə; Romanian: România [romɨˈni.a]) is a sovereign state located at the crossroads of Central, Eastern, and Southeastern Europe.
Roger Federer (German pronunciation: [ˈrɔdʒər ˈfeːdərər]; born 8 August 1981) is a Swiss professional tennis player who is currently ranked world No.
Ronald Wilson Reagan (; February 6, 1911 – June 5, 2004) was an American politician and actor who served as the 40th President of the United States from 1981 to 1989. Prior to the presidency, he was a Hollywood actor and trade union leader before serving as the 33rd Governor of California from 1967 to 1975.
Rome ( ROHM; Italian: Roma i[ˈroːma]; Latin: Roma [ˈroːma]) is the capital city of Italy and a special comune (named Comune di Roma Capitale).
Robert Anthony De Niro Jr. (; born August 17, 1943) is an American actor, producer, and director.
Ronaldo Luís Nazário de Lima (Brazilian Portuguese: [ʁoˈnawdu ˈlwiʒ nɐˈzaɾju dʒ ˈɫĩmɐ]; born 18 September 1976), commonly known as Ronaldo, is a retired Brazilian professional footballer who played as a striker.
Rock music is a broad genre of popular music that originated as "rock and roll" in the United States in the early 1950s, and developed into a range of different styles in the 1960s and later, particularly in the United Kingdom and in the United States.
Robin McLaurin Williams (July 21, 1951 – August 11, 2014) was an American actor and comedian. Born in Chicago, Williams started as a stand-up comedian in San Francisco and Los Angeles in the mid-1970s.