Encyclopedias, Almanacs, Transcripts, and Maps
- Runcorn, S.K. (1922-1995)
- Rusalki
- Rush, J(oseph) H(arold) (1911-)
- Rushes
- Rushes
- Rushton, W(illiam A(lbert) H(ugh)(1901-1980)
- Russel Aubra Hibbs
- Russell L. Schweikart
- Russell, Bertrand
- Russell, Eric Frank (1905-1978)
- Russell-Silver Syndrome
- Russian Perspectives
- Rusts and Smuts
- Rusts and Smuts
- Ruth Aaronson Bari
- Ruth Moufang
- Rutherford, Ernest
- Ruthven's Frog: Allophrynidae
- Ruysbroek (or Ruysbrock), Jan van (1293-1381)
- Ryerson, Kevin (1953-)