The Comparative military ranks of Korea are the military insignia used by the two nations 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).
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 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.)