Yechezkel Landau, Polish rabbi and author (d. 1793)
Yechezkel ben Yehuda HaLevi Landau (8 October 1713 – 29 April 1793) was an influential authority in halakha (Jewish law). He is best known for the work Noda Biyhudah (נודע ביהודה), by which title he is also known.