Ditmar

Ditmar may refer to:

People with the surname

 * Art Ditmar (1929–2021), American Major League Baseball pitcher
 * Karl von Ditmar (1822–1892), Baltic German geologist and explorer
 * Nikolay Fyodorovitch von Ditmar (1865–1919), Russian politician and businessman

People with the given name

 * Ditmar Jakobs (born 1953), German soccer player
 * Ditmar Staffelt, member of the 16th German Bundestag