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- College of Physicians of Philadelphia.5
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- Condict, Lewis, 1773-18621
- Condie, Thomas, 1775?-18141
- Connecticut Medical Society.1
- Connecticut.1
- Conover, Samuel Forman, 1766?-18241
- Cooper, Samuel, 1772-17981
- Cooper, Thomas, (Physician)1
- Cornaro, Luigi, 1475-15662
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- Courcelles, Hofkens de.1
- Cowper, Ashley, -17881
- Coxe, John Redman, 1773-18641
- Cozens, William R., -18191
- Crawford, Adair, 1748-17951
- Cruikshank, Isaac, 1756-1811, artist1
- Cruikshank, Isaac, 1756?-1811?, engraver1