Encyclopedias, Almanacs, Transcripts, and Maps
- Ravensberg
- Ravensburg
- Rawdon-Hastings, Francis
- Rawlinson, George
- Rawlinson, Henry Seymour Rawlinson, 1st Baron
- Rawlinson, Sir Henry Creswicke
- Rayleigh, John William Strutt, 3d Baron
- Raymond Berengar IV
- Raymond IV (count of Toulouse)
- Raymond VI (count of Toulouse)
- Raymond VII (count of Toulouse)
- Raytown
- Razak, Abdul
- reactance
- reaction rate
- reactive power
- Read, George
- Reading, University of
- Reagan, John Henninger
- Reaiah