Mental disorders are identified by a set of signs and symptoms causing significant clinical distress or impairment in an individual’s functioning. The relationship between mental disorders and crime has been a topic of research and heated controversy since many decades. There is a consensus advocating a link between the two. However, the exact nature of the relationship is quite complex. Though individuals with mental disorders are frequently perceived as the perpetrators of crime, emerging research shows that they are more likely to be victimized than committing a crime. Moreover, mental disorders cannot be perceived as a singular variable and need to be understood as distinct categories with different levels of sense of judgement, touch with reality, decision-making, and so forth. To understand the culpability of such individuals, these aspects need to be established clearly. This chapter elaborates upon the categories of mental disorders that are frequently associated with crime namely psychotic spectrum disorders, addiction disorders, personality disorders, dissociative disorders, and sexual disorders, and their respective association with criminal offending.