Mind control (or "brainwashing") refers to a broad range of psychological tactics able to subvert an individual's control of his own thinking, behavior, emotions, or decisions. The concept is closely related to hypnosis, but differs in practical approach.

There are a number of controversial issues regarding mind control and the methods by which control might be attained (either direct or more subtle) are the focus of study among psychologists, neuroscientists, and sociologists.

The question of mind control has been discussed in relation to religion, politics, prisoners of war, totalitarianism, black operations, neural cell manipulation, cults, terrorism, torture, parental alienation, and even battered person syndrome.

Mind control as a defense tactic (see also temporary insanity) was rejected by the court in the case of Patty Hearst, and in several court cases involving New Religious Movements.

Also, questions of mind control are regarding ethical questions linked to the subject of free will.