Rainer Schlösser (sometimes anglicized as Schlosser or Schloesser; 28 July 1899 – 9 August 1945) was a German journalist and writer who held (1933-1945) the governmental post of Reichsdramaturg (Reich Drama Adviser) in the Ministry of Popular Enlightenment and Propaganda headed by Dr. Joseph Goebbels and also (from 1935 to 1938) President of the Reichstheaterkammer or Reich Theatre Chamber, the state governing body for drama. This was an even more important and high-profile position. The equivalent body in the world of music, the Reichsmusikkammer, was headed by the world-famous composer Richard Strauss from 1933 to 1935.
According to Dr. Gerwin Strobl, an academic specialist on the Third Reich and its cultural extensions, in his book The Swastika and the Stage: German Theatre and Society, 1933-1945:
"Future leading figures of Nazi theatre, such as Reichsdramaturg Rainer Schlösser, or Leader of the Hitler Youth and head of the Vienna theatre, Baldur von Schirach, are characteristic of the able, refined and literate group of men attracted by National Socialist promises of restoring German culture."
Rainer Schlösser was born on 28 July 1899 at Jena in Thuringia. His father (d.1920) was a professor at the University of Jena who later (1917) became the director of the Goethe-Schiller Archives at Weimar, a cultural centre of immense importance and now recognized as such by UNESCO. (Rudolf Steiner, inter alia, worked in the Goethe archive at one time).
Schlösser began officer cadet training in 1917, during the First World War, after having graduated from secondary education by having taken the Abitur (secondary school graduation certificate examination). Posted to Flanders, he saw combat and was promoted to the rank of full Lieutenant.