Encyclopedias, Almanacs, Transcripts, and Maps
- Ringling Brothers
- Ringsted
- ringtail monkey
- Rinns of Galloway
- Río
- Rio Branco, José Maria da Silva Paranhos, barão do
- Río Cuarto
- Río de Oro
- Río Grande del Norte National Monument
- Rio Grande do Norte
- Río Muni
- Río Piedras
- Río Tinto
- Riobamba
- Riom
- Rion
- Ríos Montt, José Efraín
- riot, rout, and unlawful assembly
- riot-control gas
- Riouw Archipelago