- Cornell University1
- Corporation law (Islamic law)1
- Corpus commentariorum Averrois in Aristotelem (Averroës)1
- Corpus juris civilis1
- Correspondence (Cyprian, Saint, Bishop of Carthage)1
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- Corsino, Pietro di1
- Cortesi, Girolamo1
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- Cosimo II, Grand Duke of Tuscany, 1590-16211
- Cosimo III, Grand-Duke of Tuscany, 1642-17231
- Cosmetics--Moral and ethical aspects1
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- Cost1
- Costa, Gaspar, active 1533-15341
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