Dialectical Behaviour Therapy (DBT) is a principle-based psychotherapy which uses a modern blend of standard cognitive-behavioural therapy (CBT), meditation and Eastern Philosophy; it also incorporates elements of psychodynamic, client-centred, gestalt, paradoxical and strategic approaches. It is primarily used to treat Borderline Personality Disorder (BPD), Post-Traumatic Stress Disorder (PTSD), Substance use, Depression and Eating Disorders.

This therapeutic approach also uses skills training in distress tolerance, such as learning how to cope during a crisis or situation when it is difficult or impossible to change the circumstances.

DBT is aimed at acceptance and tolerance of psychological distress, rather than avoidance or trying to rid oneself of these experiences. The therapist accepts the client as they are, while acknowledging the need for change in order for them to move forward and reach their goals.