The K136 Kooryong (Romanization: K136 'Gu-ryong'; Hangul: K136 '구룡'; Hanja: K136 '九龍') is a South Korean 36 extended rocket artillery system that was deployed in 1981.

[1] The K136 Kooryong 36 extended multiple rocket launcher (MRL) began research and development in 1973 at the Agency for Defense Development (ADD) as a means of responding to the BM-21 122 mm multiple rocket launcher possessed by North Korea, and was performance tested in 1978, and the K136 was deployed in 1981.

[1] Later, the improved K136A1, which added a stainless steel launch tube and hydraulic system, was deployed to the South Korean Army from 1987 to 1991, and the K33 and K38 rockets with ranges of 36 km and 30 km were developed in 1988.

Daewoo Heavy Industries is in charge of production and the rocket was developed by Hanwha.

Three batteries of K136 Kooryong MLRS from South Korea were expected to be delivered in 2020.