Academy sergeant major

The academy sergeant major is the senior non-commissioned officer instructor at a military academy.

British Army
At the British Army's Royal Military Academy Sandhurst, the academy sergeant major (AcSM) holds the rank of warrant officer class 1. Almost always held by a guardsman, it is one of the most senior warrant officer appointments in the British Army.

Australian Defence Force
At the Australian Defence Force Academy, the academy sergeant major (ASM) also holds the rank of warrant officer class 1 or equivalent and is drawn on rotation from all three services.