Korean martial arts (Hangul: 무술 or 무예, Hanja: 武術 or 武藝) are the martial arts that originated from Korea. Some well known Korean martial arts are hapkido, kuk sool won, and taekwondo. There has also been a revival of Korean sword arts as well as knife fighting and archery. In modern times, Korean martial arts are being practiced worldwide.

Wrestling, called ssireum, is the oldest form of unarmed fighting in Korea. Besides being used to train soldiers, it was also popular among villagers during festivals. Koreans, as with the neighbouring Mongols, relied more heavily on bows and arrows in warfare than they did on close-range weapons.

It appears that during the Goguryeo dynasty, (37 BC – 668) subak (empty-handed fighting), swordsmanship, spear-fighting and horse riding were practiced. Paintings showing martial arts were found in 1935 on the walls of royal tombs, believed to been built for Goguryeo kings, sometime between 3 and 427^{[citation needed]}. Which techniques were practiced during that period is however something that cannot be determined from these paintings. References to subak can be found in government records from the Goguryeo dynasty through the Joseon dynasty (1392-1910)^{[citation needed]}.

Martial arts are extensive systems of codified practices and traditions of combat that are practiced for a variety of reasons, including self-defense, competition, physical health and fitness, as well as mental, physical and spiritual development. The term martial art has become heavily associated with the fighting arts of eastern Asia, but was originally used in regard to the combat systems of Europe as early as the 1550s. An English fencing manual of 1639 used the term in reference specifically to the "Science and Art" of swordplay. The term is ultimately derived from Latin, martial arts being the "Arts of Mars," the Roman god of war. Some martial arts are considered 'traditional' and tied to an ethnic, cultural or religious background, while others are modern systems developed either by a founder or an association.

Martial arts may be categorized along a variety of criteria, including:

Unarmed martial arts can be broadly grouped into focusing on strikes, those focusing on grappling and those that cover both fields, often described as hybrid martial arts.

Marcus Valerius Martialis (known in English as Martial) (March 1, 40 AD – between 102 and 104 AD), was a Latin poet from Hispania (the Iberian Peninsula) best known for his twelve books of Epigrams, published in Rome between AD 86 and 103, during the reigns of the emperors Domitian, Nerva and Trajan. In these short, witty poems he cheerfully satirises city life and the scandalous activities of his acquaintances, and romanticises his provincial upbringing. He wrote a total of 1,561, of which 1,235 are in elegiac couplets. He is considered to be the creator of the modern epigram.

Knowledge of his origins and early life are derived almost entirely from his works, which can be more or less dated according to the well-known events to which they refer. In Book X of his Epigrams, composed between 95 and 98, he mentions celebrating his fifty-seventh birthday; hence he was born on March 1 (x. 24) 38, 39, 40 or 41 AD, under Caligula or Claudius. His place of birth was Augusta Bilbilis (now Calatayud) in Hispania Tarraconensis. His parents, Fronto and Flaccilla, appear to have died in his youth.

Kim Jong-un also romanised as Kim Jong-eun or Kim Jung-eun, (born 8 January 1983 or 1984), is the current supreme leader of North Korea. He has held the titles of the First Secretary of the Workers' Party of Korea, the Chairman of the Central Military Commission, First Chairman of the National Defence Commission of North Korea, the Supreme Commander of the Korean People's Army, and also a presidium member of the Central Politburo of the Workers' Party of Korea. He was officially declared the supreme leader following the state funeral for his father, Kim Jong-il on 28 December 2011. He is the third and youngest son of his deceased predecessor Kim Jong-il and his consort Ko Young-hee. From late 2010, Kim Jong-un was viewed as heir apparent to the leadership of the nation, and following his father's death, he was announced as the "Great Successor" by North Korean state television. At Kim Jong-il's memorial service, North Korean Chairman of Congress Kim Yong-nam declared that "Respected Comrade Kim Jong-un is our party, military and country’s supreme leader who inherits great comrade Kim Jong-il’s ideology, leadership, character, virtues, grit and courage". On 30 December 2011 the Politburo of the Workers' Party of Korea formally appointed Kim as the Supreme Commander of the Korean People's Army. On 11 April 2012, the 4th Party Conference elected him to the newly-created post of First Secretary of the Workers' Party of Korea.