Encyclopedias, Almanacs, Transcripts, and Maps
- Colby, George P. (1848-1933)
- Colby, Luther (1814-1894)
- Cold Case
- Cold Hit
- Coleman, Loren (1947-)
- Colin Maclaurin
- Colin Munro Macleod
- Colinon, Maurice (1922-)
- College of Buddhist Studies
- College of Psychic Studies
- College of Thelema/Temple of Thelema
- College of Universal Wisdom
- Collegia artificum
- Collins, Doris (ca. 1918-)
- Collins, Mabel (Mrs. Keningale Cook)(1851-ca. 1922)
- Cölman, Arthur (ca. 1880)
- Coloboma
- Coloboma
- Colobus Monkey
- Colobus Monkeys