Kievan Rus (a medieval principality in Eastern Europe centred around Kyiv; at its maximum extent covering much of modern Ukraine, Belarus and western Russia and considered an early predecessor of each country)
Rio de Janeiro (a municipality, the state capital of Rio de Janeiro, Brazil; the former capital of Brazil); Rio de Janeiro (a state of the Southeast Region, Brazil)
Rhone, Rhône (a major river in Switzerland and France that flows from the Alps to the Mediterranean Sea); Rhône (a department of Auvergne-Rhône-Alpes, France)