Soultz-Haut-Rhin (; ) 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 long military light railway with a track gauge of 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.