Žiar (Slovak pronunciation: [ˈʐɪɐr]) is a mountain range in the Trenčín Region of northwestern Slovakia, part of the ranges of the Fatra-Tatra Area of the Inner Western Carpathians.

The chain stretches from the northwest to southeast in a curved arc 30 kilometers long and 5 to 7 kilometers wide. Almost completely forested, the highest point of the range is Chlieviská (1024 meters), in the northern part of the group.

48°57′28″N 18°45′39″E / 48.95778°N 18.76083°E / 48.95778; 18.76083