Kastelbell-Tschars (; ) is a comune (municipality) in South Tyrol in northern Italy, located about northwest of Bolzano.
As of 30 November 2010, it had a population of 2,387 and an area of .
Kastelbell-Tschars borders the following municipalities: Latsch, Naturns, Schnals and Ulten.
The emblem is a gules mill wheel, with eight paddles, on argent background. It retakes the insignia of Counts Hendl owners of the castle from 1531 to 1949.
According to the 2024 census, 98.18% of the population speak German, 1.77% Italian and 0.05% Ladin as first language.