The title Duke of Teschen is a title of nobility usually given to junior members of the Austrian monarch.

Teschen today lies divided between Czechia and Poland, and is the German language name for Czech Český Těšín and Polish Cieszyn. In the 16th century the town became one of the most important centres of trade and commerce, with significant manufactories of arms and jewelry. It also became a centre of the protestant reformation.

It became a direct apanage of the Bohemian crown in 1625 at the extinction of the male line of its dukes, falling under direct control of the Habsburg rulers. Since 1766 it bore the name of Saxe-Teschen (in German: Sachsen-Teschen), because Prince Albert of Saxony, who married a daughter of Maria Theresa of Austria, received it as part of his wife's dowry. In 1822, it was bestowed on the Archduke Charles of Austria, the victor of Aspern. It passed down his line and was inherited by his eldest son. At his death in 1895, it passed into the hands of his nephew, the Archduke Friedrich, Duke of Teschen.

Members include:

• Archduke Charles of Austria(1771–1847)
• Archduke Albert of Austria (1817-1895)
• Archduke Friedrich, Duke of Teschen (1856-1936)