- Zalka, János 1820-1901 Restorer-Conservator
- Zalka, János 1820-1901 Previous Owner Restorer-Conservator
- Zanetti, Francesco 1530 Printer of Host Volume
- Zanni, Giovanni Pietro Printer of Host Volume
- Zatzikhoven, Ulrich von, active approximately 1200 Author
- Zenaro, Damiano Printer of Host Volume
- Ziletti, Giordano Printer of Host Volume
- Zisterzienser Previous Owner
- Zisterzienserstift Stams Previous Owner