Dim Mak or "Death Touch" (dim mak is an approximate Cantonese pronunciation of 點脈, as subset of 點穴, pinyin diǎnxuè) is training the attack of Pressure points in some styles of Chinese martial arts to kill, incapacitate, or otherwise control an opponent.

Traditional Chinese medicine theory is based on the idea that specific pathway lines called meridians exist on the human body, along which are found many hundreds of acupressure points. Acupuncture is the most well known use of the meridian system. Pressing, seizing or striking these points (or combinations of points) with specific intent and at certain angles can result in either heightening or diminishing qi circulation in the body, according to this theory. According to the idea of fa jin, or explosive energy strikes, it is possible to generate massive force from no distance so knock out strikes can be delivered.

Effects are said to range between weakening an opponent, to deadening limbs or organ systems, to slowing bodily functions to the point of death.

However, many modern martial artists consider the legends of Dim Mak to be a wuxia fiction. Some consider the use of fine pressure point attacks unreliable and thier supposed effects to be exagerated by Dim Mak practioners. Others assert that it was a form of sorcery, at one point, but is now a lost art. Yet others claim to teach it in the martial syllabus of their schools.