Zbyněk Zajíc of Hazmburk or of Hasenburg (; c. 1376 – 28 September 1411) was a Czech nobleman, and an important representative of the Roman Catholic Church in the Crown of Bohemia.
Born around 1376 and passing away on September 28, 1411, Zbyněk Zajíc of Hazmburk or Hasenburg was a Czech nobleman who played an important role in the Roman Catholic Church within the Kingdom of Bohemia.