Johann Langen

Johann Langen is the name of the following people:

• Johann Georg von Langen (1699–1776), German forester
• Johann Gottlieb von Langen (1858–1940), German industrialist
• Johann Jakob Langen (1794–1869), German sugar manufacturer
• Johann Karl von Langen (1784–1849), Prussian major general and commandant of the Silberberg fortress

This is a disambiguation page for differentiating between several terms identified with the same word.