Offiziersstellvertreter, short OStv (en: Officer deputy), is a rank of the higher non-commissioned officers rank group (also staff NCO group) in the Austrian Bundesheer and Imperial German Army.
In 1915 the position Offiziersstellvertreter was introduced to the Austro-Hungarian armed forces, at the time being not as rank, but as an assignment.
It was the intention to equalise the high number of World War I losses.
Promoted were staff NCOs (Stabsfeldwebel, Stabswachtmeister, Stabsfeuerwerker, and/or Stabsoberjäger) who did have the appropriate rank at least for one month.
The rank was created in the Imperial German Army in 1887.