Wei (Chinese: 尉) is the rank held by company-grade officers in the militaries of China and Taiwan. It currently exists in three grades, shao wei (少尉), zhong wei (中尉) (chung wei using Wade–Giles), and shang wei (上尉). An additional grade, da wei (大尉), formerly existed in the Chinese military (PLA) from 1955 to 1965. However, when the use of rank and insignia was restored in 1988, this rank was not re-established. As opposed to the Western tradition of using different names for equivalent ranks in the army and navy, the Chinese armed forces use the same rank names for all services, prefixed in the case of the PLA by hai jun (海军, naval force) or kong jun (空军, air force).
- Used only from 1955 to 1965 by the PLA.