- College of Physicians and Surgeons in the City of New York.7
- Colles, Abraham, 1773-1843, author1
- Collin, V. (Victor)1
- Columbia College (New York, N.Y.)1
- Combe, George, 1788-18581
- Comstock, J. L. (John Lee), 1789-18581
- Condie, D. Francis (David Francis), 1796-18751
- Connecticut Medical Society.1
- Conwell, Columbus C.1
- Cooke, Charles Turner.1
- Cooke, John Esten, 1783-18534
- Cooper, Astley, Sir, 1768-18414
- Cooper, Edward C.1
- Cooper, Samuel, 1780-184810
- Cooper, Thomas, 1759-18391
- Cornaro, Luigi, 1475-15661
- Coster, J. (Jacques), 1795-18681
- Cotting, John Ruggles, 1783-18671
- Cox, Abm. L. (Abraham Lidden), 1800-18641
- Coxe, John Redman, 1773-18642