People

• Andrew Hecker, American Television Director
• Chris Hecker, game programmer
• Ewald Hecker (1843-1909), German psychiatrist, originator of the concept of hebephrenia
• Ewald Otto E. Hecker (1879-19??), Nazi SS Brigadeführer
• Florian Hecker (born 1975), German electronic musician, publishing mostly on Vienna's Mego label
• Friedrich Hecker, a German Forty-Eighter and veteran of the American Civil War
• Isaac Thomas Hecker (1818-1889), Roman Catholic priest, founder of the Paulist Fathers
• Johann Julius Hecker (1707-1768), a German educator who established the Berlin Realschule
• Julius F. Hecker (1881-1938), Russian and American philosopher, sociologist and theologian, pupil of Franklin H. Giddings
• Justus Hecker (1795-1850), German medical historian
• Siegfried Hecker (born 1943), Director of Los Alamos National Laboratory, professor at Stanford University
• Tim Hecker, Canadian electronic musician

Places

• Hecker, Illinois, United States, a small village

Business

• Hecker (motorcycle), a former motorcycle manufacturer in Nürnberg, Germany