Encyclopedias, Almanacs, Transcripts, and Maps
- Rabbinate
- Rabbinate: The Rabbinate in Modern Judaism
- Rabbinate: The Rabbinate in Pre-Modern Judaism
- Rabbinic Judaism in Late Antiquity
- Rabbits
- Rabbits in Australia
- Rābiʿah al-ʿAdawīyah
- Raccoons and Relatives (Procyonidae)
- Rachel and Leah
- Rachel Carson Council
- racoon
- radiation, heat
- Radioactive Fallout
- Radioactive Pollution
- Radioactive Waste Management
- Radiological Emergency Response Team
- Radionuclides
- Radiotracer
- Raëlians
- ragwort