, short OStv (), is a rank of the higher non-commissioned officers rank group (also staff NCO group) in the Austrian Armed Forces and Imperial German Army.
In 1915 the position 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. Together with the staff NCOs the formed the rank group of higher NCOs (de: higher Unteroffiziere).
The rank was created in the Imperial German Army in 1887.