von der Decken is a surname. Notable people with the surname include: von der Decken family, a German noble family Georg von der Decken (1836–1898), German politician (DHP), grandson of Johann Friedrich von der Decken Johann Friedrich von der Decken (1769–1840), Hanoverian general and diplomat Karl Klaus von der Decken (1833–1865), German explorer of eastern Africa Leopold von der Decken (1895–1947), changed his name to John Decker, painter in Los Angeles, grandson of Georg von der Decken