Flatau is a surname of people mostly of Polish and German origin. Notable people with the surname include: Alison Flatau, American aerospace engineer Edward Flatau, (1868–1932) Polish neurologist Joanna Flatau (1928–1999), Polish female psychiatrist Kazimierz Flatau (1910–2000), Polish harpsichordist, music critic, physicist and translator Theodor Simon Flatau (1860–1937), Prussian-German physician
See also Flatow