Anorexia nervosa (AN) is a serious and often highly persistent psychiatric disorder, whereby sufferers struggle to maintain a healthy weight. Its complexity creates challenges regarding treatment, however psychological therapy is recommended by the National Institute for Heath and Care Excellence (NICE). There are four major evidence-based psychotherapies recommended for treating adults-enhanced cognitive behavioural therapy (CBT-E), the Maudsley model of anorexia nervosa treatment for adults (MANTRA), specialist supportive clinical management (SSCM) and focal psychodynamic therapy (FPT)-and three main psychotherapies recommended for treating adolescents with anorexia-family therapy for anorexia nervosa (FT-AN), enhanced cognitive behavioural therapy (CBT-E) and adolescent focused therapy for anorexia nervosa (AFP-AN). Additionally, several novel adjunct treatments are under examination, two of which-cognitive remediation therapy (CRT) and cognitive remediation and emotion skills training (CREST)-are also discussed in this chapter. Other relevant areas regarding psychological treatment include: combinations of medication or occupational therapy and psychotherapy, treating individuals with comorbidities, the challenges of studying psychological treatment for anorexia and future directions of psychotherapies for anorexia, and are also discussed.