Heini Dittmar (March 30, 1912 in Bad Kissingen – April 28, 1960 near Mülheim an der Ruhr, West Germany) was a record-breaking German glider pilot.
Inspired by the example of his glider flying brother Edgar, Dittmar took an apprenticeship at the German Institute for Gliding (DFS). In 1932, flying his self-built glider Condor I, he won a first prize at the Rhön Glider Competition.
Dittmar then became a research pilot. In 1934, he, Hanna Reitsch, Peter Riedel, and Wolf Hirth were members of Professor Georgii's South American Glider Expedition, where in Argentina he achieved a new world gliding altitude record (about ). Later the same year, he achieved a new world record for long-distance using a Fafnir II and was awarded the Hindenburg Cup. In 1936, he achieved the first crossing of the Alps in a glider. He then crowned his career as a glider pilot by becoming the first Gliding World Champion after his victory at the first Rhön International Gliding Competition in 1937.