Zolochiv (also known as Sassow) is a town located in the Lviv Oblast (province) of western Ukraine. It is the administrative center of the Zolochivsky Raion (district).

Zolochiv was incorporated as a town on 15 September 1523 by the Polish King Sigismund I the Old. Located in the Ruthenian Voivodship of the Polish-Lithuanian Commonwealth, it belonged to several noble families. In 1772, following the First Partition of Poland, it was annexed by Austria, and in 1918, following the World War One, it passed to Poland. Zolochiv, known then as Zloczów, belonged to the Tarnopol Voivodship until the Polish September Campaign, when it was occupied by the Soviet Union. Now, it is part of independent Ukraine.