Sızır is a town in Gemerek District, in Sivas Province, Türkiye. Sızır lies 1.5 km from the Ak Dağlar mountains. It has 3,081 inhabitants (2022). The nearest city is Akdağmadeni, 39 km to the north. Among the landmarks around are Şahruh Bridge (14.5 km) and Kültepe (58 km). Among the natural features are Göksu Waterfall (1.0 km).