Addictions have a notable impact, not only on the people who suffer from them, but also on their closest environment, where some of the most significant people for the person with an addictive disorder are usually those who take care of them throughout the evolution of their disease. This chapter addresses the role that caregivers of patients with addictions play in their treatment, specifying what their main functions are, both emotional and logistical support, and to what extent they can contribute to their recovery. It also focuses on the consequences that the addictive disorder has on the lives of caregivers, at a family, financial, and psychological level. Finally, some measures for the care of the caregiver are proposed, including skills for coping with emotions, chronic stress, stigma, and codependency, among others.