Author
- William of Conches2
- William of Malmesbury2
- William of Montlauzun2
- William of Nangis1
- William of Ockham1
- William of Pagula2
- William of Paris1
- William of Saliceto1
- William of St-Thierry1
- William of Tyre1
- William of Waddington1
- Wolf Michel1
- Wolff Aichinger1
- Wool Guild2
- Wu Chen1
- Wu Yan1
- Wāḥidī Nīsābūrī8
- Xenophon2
- Xia Liangsheng1
- Xiao Qi1