- Source: Dieffenbach (surname)
Dieffenbach is a German surname. Notable people with the surname include:
Edouard Dieffenbach (1897–1972) French military officer, World War I veteran
Ernst Dieffenbach (1811–1855), German physician, geologist and naturalist
Georg Christian Dieffenbach (1822–1901), German poet and theologian
Johann Friedrich Dieffenbach (1792–1847), German surgeon
Joseph Dieffenbach (1796–1863), German gardener
See also
Diefenbach (surname)