Muay Thai is a combat sport from Thailand that uses stand-up striking along with various clinching techniques. It is similar to other Indochinese kickboxing systems, namely pradal serey from Cambodia, tomoi from Malaysia, lethwei from Myanmar and muay Lao from Laos. Descended from muay boran, muay thai is Thailand’s national sport. The word muay derives from the Sanskrit mavya which means “to bind together”. Muay thai is referred to as the “Art of Eight Limbs” or the “Science of Eight Limbs” because it makes use of punches, kicks, elbows and knee strikes, thus using eight “points of contact”, as opposed to “two points” (fists) in boxing and “four points” (hands and feet) used in other more regulated combat sports, such as kickboxing, boxing, and savate. A practitioner of muay thai is known as a nak muay.

Various forms of kickboxing have long been practiced throughout Southeast Asia. Based on Chinese and Indian martial arts, practitioners claim that these systems can be traced back to a thousand years. In Thailand, muay thai evolved from the older muay boran (ancient boxing), an unarmed combat method which would have been used by Siamese soldiers after losing their weapons in battle. Some believe that the ancient Siamese military created muay boran from the weapon-based art, krabi krabong but others contend that both systems were developed at the same time. Krabi krabong nevertheless was an important influence on muay thai as seen in the movements in the wai khru. Muay boran, and therefore muay Thai, was originally called dhoi muay or simply muay. As well as being a practical fighting technique for use in actual warfare, muay became a sport in which the opponents fought in front of spectators who went to watch for entertainment. These muay contests gradually became an integral part of local festivals and celebrations, especially those held at temples.