Dittmann is a German surname. Notable people with the surname include:
Lorenz Dittmann (1928–2018), German art historian Marion Dittmann (born 1956), former East-German long track speed skater Mireille Dittmann (born 1974), former professional tennis player from Australia Sabine Dittmann, Australian-based marine biologist Sieghart Dittmann (born 1934), German chess player and epidemiologist Wilhelm Dittmann (1874–1954), German Social Democratic politician
Fictional characters Arnold Dittmann, fictional character in the 1958 war film Darby's Rangers