Leo Jud, Swiss theologian and reformer (b. 1482)

Leo Jud (; also Leo Juda, Leo Judä, Leo Judas, Leonis Judae, Ionnes Iuda, Leo Keller; 1482 – 19 June 1542), known to his contemporaries as Meister Leu, was a Swiss reformer who worked with Huldrych Zwingli in Zürich.