Korea National Defense University () is a national university located in Nonsan, South Chungcheong Province, South Korea. It was founded in 1955. It got its current configuration in 2000. The university was situated in Seoul from its founding until its relocation to Nonsan, South Chungcheong Province in 2017.
The president of Korea National Defense University is appointed by Minister of National Defense and it is stated that only General officer, usually Lieutenant general from Republic of Korea Army are eligible. However, from December 2021 Major general were appointed to this position.