Author
- Walter of Châtillon2
- William Brito2
- William of Auxerre2
- William of Conches2
- William of Malmesbury2
- William of Montlauzun2
- William of Pagula2
- Xenophon2
- Yaʻaḳov Avraham Giron2
- Yaʻaḳov ben Shelomoh Sukari2
- Yaʻaḳov Ṭoledano2
- Yaḥyá ibn Yūsuf Sīrāmī2
- Yeḥiʾel ben Yeḳutiʾel ʿAnaṿ2
- Yom-Tov Lipmann Heller2
- Yosef Pinto2
- Yusuf al-Bahrani2
- Yūsuf Ibn-Sulaimān al- Aʿlam aš-Šantamarī2
- Yūsuf Rājū Qitāl2
- Yūsuf ibn ʻAbd al-Malik Qarah Sinān2
- Zahir-al-Din Faryabi2