| Cetology (A study of Whales) |
Chalcography |
| Chaology |
Characterology |
| Chemistry |
Chirocosmetics |
| Chirography |
Chirology |
| Chiropody |
Chorology |
| Chrematistics |
Chronobiology |
| Chrysology |
Ciselure |
| Climatology |
Clinology |
| Codicology |
Coleopterology |
| Cometology |
Conchology |
| Coprology |
Coprology (A study of Pornography) |
| Cosmetology |
Cosmology |
| Craniology |
Criminology |
| Cryobiology |
Cryptology |
| Cryptozoology |
Ctetology |