Wok of Waldstein was a Bohemian noble and a notable figure among the Hussites of Prague.

In 1410, Archbishop Zbyněk Zajíc of Hazmburk threatened to declare interdict over every scholar who refused to give up their writings of Wycliffe.

King Wenceslaus IV ordered the archbishop and his subordinates to compensate the book owners.

[1] That year, Wok received a congratulatory letter from John Oldcastle after a number of protests resulting from the burning of books written by Wycliffe.

[2] In 1412 Wok was the leader of a crowd that publicly burned papal bulls regarding intercession on the pillory of Prague[3] In 1415, he protested against the condemnation of Jan Hus by the Council of Constance.