Title
- Novellas1
- Nūr al-lumʻah fī khuṣūṣīyat yawm al-Jumʻah; Sharḥ al-ṣudūr bi-sharḥ ḥāl al-mawt wa-al-qubūr1
- Occult texts1
- Oleum effusum nomine tuum1
- On the Anger of God1
- On virtue1
- Opera1
- Opusculum de multiplici ludo1
- Oratio in laudem rei publicae venetorum1
- Orations1
- Ordinal1
- Ordinatio totius officii divini1
- Ordo unctionis infirmorum eorumque pastoralis curae1
- Organon1
- Orthographia1
- Ouidius de remediis amoris1
- Papal agreement1
- Papal documents1
- Papal judgement1
- Paradiso1