Zavalla is a town in the south of the province of Santa Fe, Argentina. It has 4,659 inhabitants per the 2001 census. It is located on National Route 33, immediately west of Pérez, 22 km south-west of the center of Rosario, and 187 km south of the provincial capital Santa Fe. The settlement was born around a train station of the Ferrocarril Oeste Santafesino railway company, built in 1883 under the sponsorship of Carlos Casado del Alisal.