Psychological torture or mental torture is a type of torture that relies primarily on psychological effects, and only secondarily on any physical harm inflicted. Although not all psychological torture involves the use of physical violence, there is a continuum between psychological torture and physical torture. The two are often used in conjunction with one another and often overlap in practice, with the fear and pain induced by physical torture often resulting in long-term psychological effects, and many forms of psychological torture involving some form of pain or coercion.

White torture, often referred to as white room torture, is a type of psychological torture technique aimed at complete sensory deprivation and isolation. A prisoner is held in a cell that deprives them of all senses and identity. It is particularly used in Iran; however, there is also evidence of its use by Venezuelan and United States intelligence services.