- Warburton, William
- Wasa, Kristina
- Weber, Samuel
- Weil, Simone
- Weininger, Otto
- West, Cornel
- Whewell, William
- Whitehead, Alfred North
- Wilkins, John
- William of Auvergne
- William of Champeaux
- William of Conches
- William of Moerbeke
- William of Ockham
- Windischmann, Karl Joseph Hieronymus
- Wittgenstein, Ludwig
- Wolff, Christian
- Wundt, Wilhelm
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- ..French(2)