Former Owner
- Thomas Shadford Walker1
- Thomas Windus1
- Thomon Simon Jones1
- Vatican Library1
- W. P. Hall Walker1
- Walter Ambrose Heath Harding1
- Walter Paul Havens1
- Weiss & Co.1
- Wilfrid Voynich1
- William Bateman1
- William Burdett-Coutts1
- William Cecil, 1st Baron Burghley1
- William Lymnor of Sharrington1
- William Maskell1
- William Morris1
- William Ralph Inge1
- William Thynne1
- Wolfgang Sigismund, Graf von Gallenberg1
- Yāsīn ibn ʻAbd al-Wahhāb al-Siṭrābī1
- al-Ḥājj ʻAbd al-Qādir ibn al-Sayyid ʻAbd Allāh al-Asṭawānī1