János Scheffler was a Hungarian-born Roman Catholic bishop who served the dioceses of Satu Mare and Oradea Mare. Born in Kálmánd in 1887, he was ordained a priest in 1910 and later earned a doctorate in canon law. After working as a professor and dean, he served as a parish priest before being elected Bishop of Szatmárnémeti in 1942. He later became the Bishop of Győr in 1945. His life ended in 1952 while he was imprisoned for resisting the policies of the communist government in Romania.