Encyclopedias, Almanacs, Transcripts, and Maps
- Rikbaktsa
- Riley, Pat(rick) James
- Rilke, Rainer Maria (René) (1875–1926)
- Rímac River
- Rinconcito, Treaty of (1838)
- Ringo, James Stephen ("Jim")
- Rintelen, Fritz-Joachim von (1898–1979)
- Río Azul
- Río Blanco Strike
- Rio Branco Institute
- Rio Branco, Barão do (1845–1912)
- Rio Branco, Visconde do (1819–1880)
- Rio Conference (1942)
- Rio Conference (1947)
- Rio Conference (1954)
- Rio de Janeiro (City)
- Rio de Janeiro (Province and State)
- Río de la Plata, Viceroyalty of
- Rio Grande do Norte
- Rio Grande do Sul