Encyclopedias, Almanacs, Transcripts, and Maps
- Centre de Cryptozoologie
- Centre for Crop Circles Studies (CCCS)
- Centre House
- Centro di Ricerca Psichica del Convivio
- Centro Italiano de Parapsicologia
- Centro Studi Parapsicologici
- Centurione Scotto, Marquis Carlo (ca. 1928)
- Cephalocarids: Cephalocarida
- Cephalomancy
- Cepionidus
- Ceraunius (or Cerraclus)
- Ceraunoscopy
- Cercle International de Recherches Culturelles et Spirituelles
- Cerebral Angiitis
- Cerebral Cavernous Malformation
- Cerebral Circulation
- Cerebral Dominance
- Cerebral Hematoma
- Ceremancy
- Ceremonial Magic