Kolovrat (Friulian: Colorât, Italian: Colovrat) is a mountain ridge of the Julian Prealps on the border between Slovenia and Italy, west of Tolmin and southeast of Kobarid. It is a geographical border between the Soča Valley in Slovenia and the Venetian Slovenia region of Italy. It extends about 7 km at an elevation between 800 and 1150 m. There are two roads on the ridge, one from the Italian side, accessible from Drenchia, and one from the Slovenian side, accessible from the villages of Livek and Volče. In 1917, it was an important site in the Battle of Caporetto.