Editing Non-commissioned officer (section)

===United Kingdom===
[[File:District Gunner.jpg|200px|thumbnail|Sergeant, Royal Artillery, on the esplanade of [[Edinburgh Castle]], firing the one o'clock gun]]
In the [[military of the United Kingdom|British Armed Forces]], NCOs are divided into two categories.  [[Lance corporal]]s (including [[lance bombardier]]s) and corporals (including [[lance sergeant]]s, [[bombardier (rank)|bombardiers]], and [[lance corporal of horse|lance corporals of horse]]) are junior NCOs.  Sergeants (including [[corporal of horse|corporals of horse]]), [[staff sergeant]]s (including [[colour sergeant]]s and [[staff corporal]]s), and RAF [[chief technician]]s and [[flight sergeant]]s are senior NCOs.

Warrant officers are often included in the senior NCO category, but actually form a separate class of their own, similar in many ways to NCOs but with a royal warrant. Senior NCOs and WOs have their own messes, which are similar to officers' messes (and are usually known as sergeants' messes), whereas junior NCOs live and eat with the unranked personnel, although they may have a separate corporals' club to give them some separate socialising space.

The [[Royal Navy]] does not refer to its petty officers and chief petty officers as NCOs, but calls them senior ratings (or senior rates). [[Leading rating]]s and below are junior ratings.