Encyclopedias, Almanacs, Transcripts, and Maps
- riboflavin mononucleotide
- Ribot, Théodule
- Ricasoli, Bettino, Barone
- Riccio, Andrea
- Riccio, David
- rice bird
- Rice University
- rice-paper plant
- riceditch killifish
- ricefish
- Rich, Barnabe
- Rich, Edmund
- Rich/Wealthy Families
- Richard Lion-Heart
- Richard of Devizes
- Richard, earl of Cornwall
- Richards, Dickinson Woodruff, Jr.
- Richards, Ellen Henrietta Swallow
- Richards, Gordon
- Richards, Thomas Addison