The Melanchthonhaus is a writer's house museum in the German town of Lutherstadt Wittenberg.

It is a Renaissance building with late Gothic arched windows and the broad-tiered gables.

It includes the study of the influential Protestant Reformer Philipp Melanchthon, who lived there with his family.

In 1954 the house became a museum on Melanchthon's life and work displaying paintings, prints and manuscripts by him and his contemporaries.

In 1996, the building became a UNESCO World Heritage Site along with sites associated with Melanchthon's contemporary Martin Luther in Witternberg and Eisleben because of their religious significance and the lasting, global influence of Protestantism.