The German-American Heritage Museum of the USA, or GAHM, is located in the Penn Quarter's Hockemeyer Hall in Washington D.C., the capital of the United States of America.

The museum, headquarters of the German-American Heritage Foundation of the USA, traces the 400-year long history of Germans in America from 1600 to now.

[1] John Hockemeyer was a German man who emigrated to the United States.

After the Civil War, he became a wealthy merchant and a leader among Washington D.C.'s German community.

In October 2008, the German-American Heritage Foundation of the USA purchased this building to establish the museum.