The Schwarzbach (German pronunciation: [ˈʃvaʁtsˌbax]) is a river in southwestern Germany, left tributary of the Blies.

The two headwaters of the Schwarzbach, the first 16 km (9.9 mi) of which is also known as Burgalb, rise on western side of the watershed in the middle of the Palatinate Forest, just south of the hamlet Johanniskreuz, at an altitude of about 500 m. One spring is located on the southern slope of the 528 m high Mount Steinberg.

The other spring is three kilometers away, on the southwest side of the 609 m (1,998 ft) high Mount Eschkopf.

It flows past Contwig to Zweibrücken, where it takes up the Wiesbach [de; eo] from the right, followed by the Horn from the left.

This holiday route was established in 1977 in order to commemorate that in the early 19th century the region surrounding Pirmasens was the heart of the German shoe industry.