János Hajdú (born 1898 in Komló [1]) was a Hungarian footballer and coach.
He became known for having been the player/manager of S.S.C. Bari during the 1930–31 Serie B season. [1]
Previously, he played as midfielder [2] in NAK Novi Sad in 1924 [3] in Yugoslavia, and in Italy in FC Liberty Bari in the 1924–25 and 1925–26 [2] Prima Divisione seasons.