Emil Faktor (born 31 August 1876 in Prague, Austro-Hungary[1]) was a German language theater critic, editor and writer.

Sources sometimes identify him as "Jussuf" which was the pseudonym under which his regular contributions to the Berliner Börsen-Courier (newspaper) appeared.

[4] Fourteen years younger than her husband, Sophie Sack was a talented concert pianist whose teachers had included Artur Schnabel.

The Faktors' daughter Lili fled to the United States of America in March 1939, and she arranged the affidavits necessary to permit her parents to follow her there,[4] but the US authorities appear to have been applying restrictive immigration quotas: Emil and Sophie Faktor never obtained entry visas for the United States.

On 21 October 1941 Faktor and his wife were deported from Prague and sent to the Litzmannstadt ghetto where they were killed on 10 April 1942.