Otto Karl Heinrich Greif (11 March 1907 – 16 July 1946) was a German actor and social activist.

After the Nazis' rise to power led to party and trade union work being made illegal, he published the theater magazine Rampa.

The operation was carried out personally by the head of surgical department, 71-year-old Ferdinand Sauerbruch.

By this time, Sauerbruch already showed symptoms of cerebral sclerosis: mistakes were made during the routine operation that caused the death of the actor.

[2] In 1951, the German Democratic Republic was approved Heinrich Greif Prize for outstanding achievements in the field of cinema.