Title
- Commendations of Souls1
- Commentary1
- Commentary on Aristotle, Prior Analytics1
- Commentary on Lombard1
- Commentary on Lāmīyat al-afʻāl1
- Commentary on Pauline Epistles1
- Commentary on Porphyry1
- Commentary on Ptolemy1
- Commentary on Romans1
- Commentary on Sentences1
- Commentary on Wisdom of Solomon1
- Commentary on al-Miṣbāḥ1
- Commentary on the Ephemerides1
- Commentary on the Old Testament1
- Common book1
- Communiloquium1
- Compendium iuris canonici1
- Compendium morale1
- Compendium religiosi vivendi1
- Compleynt of Cryst1