A regimental sergeant major in the Australian Army is usually a warrant officer class 1 and holds a special position within a regiment or battalion as the senior non-commissioned adviser to the unit's commanding officer. … See more

In the Canadian Forces, the appointment of regimental sergeant major is normally held by an army chief warrant officer. Due to the integrated … See more

Like most Commonwealth forces, the RSM in the Singapore Armed Forces is usually the most senior warrant officer in the unit. Depending on the size of the unit, RSMs can be third, second, first, master, or senior warrant officers.
Exceptions to this are: See more

• "The Role and Tasks of the South African RSM". Archived from the original on 24 May 2009. See more

In the Nigerian Army, the appointment of RSM is usually held by a master warrant officer. The RSM, during any visit from a general officer, … See more

In the British Army and Royal Marines, the RSM, who always holds the rank of warrant officer class 1 (WO1), is addressed as "Sir" or … See more

The equivalent rank in the United States Army is command sergeant major. The rank of regimental sergeant major existed in the United States Army during World War I See more