The question of which Martial Art system is more "deadly" than any other, amounts to the same debate as what is the "best" Martial Art - - which is ALWAYS a matter of opinion based on personal preference, individual experiences, an not on facts.
First of all, there is really no accurate way to quantify the term "deadly," as in "deadlier" or "deadliest." You are either dead, or you are not. A technique, or combination of techniques assembled into a skill set and taught in a curriculum either contains "deadly" techniques that are capable of killing someone, or they are void of them. Virtually every well-known Martial Art system contains at least one, and more commonly, most have multiple techniques that are deadly.
It would not matter if there was only one move in the entire curriculum of any given Martial Art system, or thousands that were known to cause death. All it takes is one deadly technique, applied correctly, to make that Martial Art system deadly. If you learn a thousand non-lethal techniques, and only one "deadly" technique, but apply that one deadly technique with great skill 99% of the time, the result will produce more death than a person training in a system containing a majority of deadly skills, but only apply them half the time.
It is true that it is not the system or form of Martial Art that affects the deadly outcome, but the skill of the Martial Artist, how often they engage in mortal combat, and the number of times they implement one or more deadly techniques.
[Supervisor's note: to avoid the answers on this page from being written, deleted, and replaced over and over by a plethora of novice, and every Martial Artist promoting their favorite system, personal opinions may be added to the discussion page here]
"Deadliest Martial Art" is a misnomer. The Martial Art is the knowledge of combative skills that are potentially deadly. Each system of Martial Art curriculum teaches techniques that can kill someone. Once an opponent has been killed, they are dead. There are no different levels or degrees of being dead, therefore no Martial Art can be more deadly than any other, and none can logically be called the "deadliest."
A form of martial arts.
the most violent form of traditional martial arts is street fight and taekwondo.
There is no 'ultimate' form. Martial arts were developed in many places over great stretches of time. They take many forms.
If you're asking where martial arts was born ... Then most believe it was born in China , and that , " Kung Fu" was the first martial arts form.
Kung Fu is a form of martial arts.
A form of martial arts.
the most violent form of traditional martial arts is street fight and taekwondo.
There is no 'ultimate' form. Martial arts were developed in many places over great stretches of time. They take many forms.
ken-do in a form of martial art that uses primarily swords, although most martial arts use weapons at some level.
quaipo
Pekiti is a form of Filipino martial arts.
The form of martial arts that originated in India is Kshatriya. It was first practiced sometime in the 400 B.C. years.
If you're asking where martial arts was born ... Then most believe it was born in China , and that , " Kung Fu" was the first martial arts form.
martial arts
Kung Fu is a form of martial arts.
Wing Chun is the form of martial arts that was popularized by Donnie Yen.
The name will depend upon the martial art. In karate it is called a kata. Other arts use the word form or poomse for a sequence.