Alexander Ernst Alfred Hermann Freiherr von Falkenhausen (29 October 1878 – 31 July 1966) was a German general and military advisor to Chiang Kai-shek. He was an important figure during the Sino-German cooperation to reform the Chinese Army. In 1938, Germany ended its support for China under pressure from Japan, and Falkenhausen was forced to return home. Back in Europe, he later became the head of the military government of Belgium from 1940 to 1944 during its German occupation.