Hellmann is a German surname. Notable people with the surname include:
Claudia Hellmann (1923–2017), German contralto Diethard Hellmann (1928–1999), German choral conductor and academic Ernesto Hellmann (1898–1952), Italian chess player Gustav Hellmann (1854–1939), German meteorologist Hans Hellmann (1903–1938), German theoretical chemist Hellmann–Feynman theorem Libby Fischer Hellmann (born 1949), crime fiction writer Martina Hellmann (born 1960), German athlete Richard Hellmann (1876–1971), German-American businessman and founder of Hellmann's
See also Hellman Hellmann Worldwide Logistics Hellmann's and Best Foods Helman Helmand Province, Afghanistan