István Türr, Hungarian soldier, architect, and engineer, co-designed the Corinth Canal (d. 1908)

István Türr (Italian: Stefano Türr, French: Étienne Türr), (10 August 1825 in Baja, Hungary – 3 May 1908 in Budapest) was a Hungarian soldier, revolutionary, canal architect and engineer, remembered in Italy for his role in that country's unification and his association with Garibaldi. In the later years of his life became known as a peace activist.