Adjutant is a military rank or appointment. In some armies, including most English-speaking ones, it is an officer who assists a more senior officer, while in other armies, especially Francophone ones, it is an NCO (non-commissioned officer), normally corresponding roughly to a Staff Sergeant or Warrant Officer.

An Adjutant General is commander of an army's administrative services.

Adjutant comes from the Latin adjutans, present participle of the verb adjuvare, "to help"; the Romans actually used adiutor for the noun.

In various uniformed hierarchies, the term is used for number of functions, but generally as a principal aide to a commanding officer.

A Regimental Adjutant, Garrison Adjutant etc. is a staff officer, who assists the commanding officer of a regiment, battalion or garrison in the details of regimental, garrison or similar duty. In United States Army squadrons, the adjutant is often the officer-in-charge (OIC) of the administrative platoon.

Peter Berling (March 20, 1934 in Meseritz-Obrawalde) is a German actor and writer. He has worked on several occasions with director Werner Herzog, in his collaborations with actor Klaus Kinski.

In several of his medieval novels Berling has drawn on conspiracy theories based on the Priory of Sion.