Soultz-Haut-Rhin (French pronunciation: [sults o ʁɛ̃] ^ⓘ; German: Sulz/Oberelsaß) is a commune in the Haut-Rhin département in Grand Est in north-eastern France.

Its inhabitants are called Soultziens (male) or Soultziennes (female).

The town of Soultz-Haut-Rhin has an enclave located northeast of Goldbach-Altenbach.

The town of Soultz was built around a salted water source from which originates its name.

The origins of Soultz go back to the 7th century.

667 : the written name of Sulza (salted source) is mentioned in a donation from Adalrich, Duke of Alsace, father of Saint Odile, of the bann of Soultz to the convent of Ebersmunster.

The Soultz Railway was a 9.8 km (6.1 mi) long military light railway with a track gauge of 600 mm (1 ft 11+5⁄8 in) that the Germans built and operated during World War I from Soultz to the Niederwald terminus below the Hartmannswillerkopf near Wattwiller.

Soultz has houses from the 15th, 16th, 17th and 18th centuries.