Child maltreatment (CM) and bullying can have many consequences for victims. Although we know it very well now, evidence of the consequences of these experiences in sport is lacking. The limited data that we have address only some aspects of the possible consequences of CM and bullying in sport, such as impacts on somatisation, depression, anxiety, and quality of life. Despite this progress in the field, some forms of consequences of CM and bullying in sport remain understudied, such as self-directed violence. Recent reviews in the CM and bullying literature, however, show clear links with self-directed violence, such as self-harm, disordered eating, suicide, and addictive behaviours. The aim of this chapter is to describe the state of knowledge of the links between CM and bullying suffered within the sport environment and self-directed violence, including behaviours that are specific to sport, such as doping and training while injured.