Ernst Friedrich Heilborn (1867–1942) was a German writer, critic and journalist.
Heilborn successfully completed his secondary education at the French School in Berlin, and went on to study Philosophy, History and German literature with linguistics at university in Jena and Berlin.
He received his doctorate in 1890 with a dissertation entitled tantalizingly "Der Wortschatz der sogenannten ersten schlesischen dichterschule in wortbildung und wortzusammensetzung dargestellt" (The Vocabulary of the so-called first First Silesian School of Poets presented in word pictures and word composition)) In the 1890s he began work in the world of German journalism.
As an author he produced cultural and historical works as well as biographies and several novels.
However, from 1933 his journalistic activity was increasingly restricted due to his Jewish provenance, and in November 1936 a "writing ban" was imposed on him.