Mandelbachtal is a municipality in the Saarpfalz district, in Saarland, Germany.

Mandelbachtal is composed of the communities of Bebelsheim, Bliesmengen-Bolchen, Erfweiler-Ehlingen, Habkirchen, Heckendalheim, Ommersheim, Ormesheim, and Wittersheim.

The name is derived from the valley of the Mandelbach, in which four of the eight communities composing the town are located: Erfweiler-Ehlingen, Wittersheim, Bebelsheim und Habkirchen.

From the shoots of these willows in previous centuries people wove baskets necessary for local agriculture.

In 1974, during the reform of administrative districts in Saarland, today's Mandelbachtal was formed by the consolidation of eight formerly independent communities.