Yongmudo (also spelled Yongmoodo, Yong Moo Do) is a modern, hybrid martial art that was developed in 1998 by sports scientists at Yong-In University in Korea. Yongmudo combines kicking techniques from taekwondo, grappling and throwing techniques from hapkido, throwing techniques from judo, and wrestling techniques from ssireum. The main offensive and defensive techniques of Yongmoodo include throwing, grappling and ground techniques from Judo, slamming and holding down from Wrestling, kicking, striking, thrusting, punching and blocking from Taekwondo, Kumdo and Kerkki, and joint locking from Hapkido.

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Hapkido (UK: /ˌhæpkiːˈdoʊ/ HAP-kee-DOH,[1]US: /hɑːpˈkiːdoʊ/ hahp-KEE-doh,[2] also spelled hap ki do or hapki-do; from Korean hapgido [hap̚.ki.do]) is a hybrid Korean martial art. It is a form of self-defense that employs joint locks, grappling, throwing techniques, kicks, punches, and other striking attacks. It also teaches the use of traditional weapons, including knife, sword, rope, nunchaku (ssang juhl bong), cane (ji pang ee), short stick (dan bong), and middle-length staff (joong bong), gun (analogous to the Japanese jō), and bō (Japanese), which vary in emphasis depending on the particular tradition examined.

Hapkido employs both long-range and close-range fighting techniques, utilizing jumping kicks and percussive hand strikes at longer ranges, and pressure point strikes, joint locks, and throws at closer fighting distances. Hapkido emphasizes circular motion, redirection of force, and control of the opponent. Practitioners seek to gain advantage over their opponents through footwork and body positioning to incorporate the use of leverage, avoiding the use of brute strength against brute strength.

The art was adapted from Daitō-ryū Aiki-jūjutsu as it was taught by Choi Yong-Sool (최용술) when he returned to Korea after World War II after having lived in Japan for 30 years. This system was later combined by Choi´s disciples with kicking and striking techniques of indigenous and contemporary arts such as Taekkyon, and Tang Soo Do; as well as various throwing techniques and ground fighting from Japanese Judo.