Author
- Vincenzo Gonzaga1
- Virgil1
- Walter Hilton1
- Werner Rolevinck1
- William Bourne1
- William Brito1
- William IV, Landgrave of Hesse-Kassel1
- William Perault1
- William Rothwell1
- William of Auxerre1
- William of Conches1
- William of Ockham1
- William of Pagula1
- William of Paris1
- Yaḥya, Avraham, 17th century1
- Yaḥyá ibn Aḥmad Kāshānī1
- Yūsuf Rājū Qitāl1
- Zakariya al-Qazwini1
- Zayn al-Din Gorgani1
- Zayn al-Dīn Muḥammad Jibrīl1