摘要: Gambling at problematic levels does not only affect the person who gambles, but also their families, friends, colleagues (ie, affected others), and communities. In fact, prevalence estimates suggest there are more individuals affected by someone else’s gambling (2 to 19%; Dowling et al., 2022a, 2022b) than those experiencing harm from their own gambling behaviour (0.1% to 5.8%; Calado et al., 2017). It has been estimated that one person’s gambling problem impacts up to six other people; and that low-risk and moderate-risk gambling affects one and three others, respectively (Goodwin et al., 2017). Recent evidence estimates the burden of harm experienced by affected others is 1.5 times greater than that experienced by those who gamble (Browne et al., 2017). The sheer number of affected others impacted by gambling-related harm necessitates resources and skills for the mental health and addiction workforce to be able to respond appropriately to this issue.This chapter is intended to be a resource for clinicians who work with affected others across gambling, addiction and mental and allied health services. It begins with a brief summary of gambling-related harms experienced by affected others and methods to screen and assess for them, and then examines the help-seeking preferences of affected others, and the available self-help and treatment options. The chapter finishes with examples and suggestions for methods to respond to the needs of affected others.