The Korea Atomic Energy Research Institute (KAERI; Korean: 한국원자력연구원) in Daejeon, South Korea was established in 1959 as the sole professional research-oriented institute for nuclear power in South Korea, and has rapidly built a reputation for research and development in various fields.

KAERI was established in 1959 as the Atomic Energy Research Institute (national research institute).

KAERI has made significant contributions to the nation's nuclear technology development.

After Korea achieved self-reliance in nuclear core technologies, KAERI have transferred highly developed technologies to local industries for practical applications.