Comparative military ranks of Korea

Comparative military ranks of Korea refer to the ranks and insignia maintained by the three primary military powers present on the Korean Peninsula, those being the Republic of Korea Armed Forces (South Korea), the Korean People's Army of the Democratic People's Republic of Korea (North Korea), and the military forces of the United States in South Korea.

In the South Korean armed forces, ranks fall into one of four categories: commissioned officer, warrant officer, non-commissioned officer, and enlisted, in decreasing order of authority. Commissioned officer ranks are subdivided into "Janggwan"-level (general) officers, "Yeonggwan"-level (field-grade) officers, and "Wi-gwan"-level (company-grade) officers. The ranks of all three branches (the Army, Navy, and Air Force) of the South Korean Armed Forces share the same titles in Hangul. Most ranks of South and North Korea are identical, with some exceptions such as the supreme North Korean ranks.

The following table lists the comparative ranks of the militaries in Korea, including their rank titles and insignia. In this table, the North Korean military rank insignia shown is that of their Army field uniform shoulder boards; their parade uniforms and uniforms of other branches use alternative color schemes with the same basic design. The South Korean and U.S. militaries likewise have subdued versions of their insignia in each of their branches.

(Note on romanization: In the article, all South Korean ranks are spelled accordingly with the Revised Romanization of Korean system; all North Korean ranks use the McCune-Reischauer system.)

Officer ranks
The shoulder boards and sleeve stripes of American and South Korean ranks apply only to their navies. Neither the U.S. Marine Corps or ROK Marine Corps maintains a five star "General" rank. North Korea's Korean People's Army does not maintain a separate marine corps or naval infantry branch as part of their armed forces, although it does maintain two "Amphibious Sniper Brigades" as part of the North Korean Special Operation Force (NKSOF). North Korean insignia follow the Soviet pattern, while South Korean insignia follow a mix of United States and British rank insignia traditions.

Enlisted ranks
Both North Korea and South Korea share the same enlisted rank structure among all of their military branches. They also have enlisted ranks called "Corporal" and "Sergeant" in English, but they are not considered non-commissioned officer ranks, though they are treated as one if they hold an NCO position.

All branches of the South Korean armed forces maintain a single Warrant Officer rank known as Junwi. Warrant Officers fall in between non-commissioned and commissioned officers. The rank is denoted by a gold-colored Sowi insignia and, in the case of the South Korean Navy, a single broken sleeve stripe. The North Korean military does not maintain any equivalent Warrant Officer positions.