Former Owner
- William Henry Stark1
- William Herbert1
- William J. Shaw1
- William Keeney Bixby1
- William Lambarde1
- William Noel-Hill, 3rd Baron Berwick1
- William Salloch18
- William Taylor Scheide1
- William Thynne1
- William Tyssen-Amherst, 1st Baron Amherst of Hackney1
- William Wadden Turner1
- Wolfgang Sigismund, Graf von Gallenberg1
- Wolfgang Täxer1
- Ya'akov Yisra'el Levenshtam6
- Yahya Ben Salem1
- Yahya Gimani1
- Yahya ben Yosef Eina1
- Yajñeśvara Bhaṭṭa1
- Yitzhak Nahum Kuzi1
- Yosef Ben Said Altanami1