Forgiveness is recognised as a positive facet of psychosocial well-being and is therefore gaining interest in the scientific community. Emerging evidence indicates that forgiveness can increase well-being and that the ability to forgive is a stress-lowering factor. In mental healthcare, the ability to forgive may be essential to work therapeutically with patients. However, forgiveness can be challenging, particularly in acute inpatient settings such as secure forensic wards where verbal or physical aggression is a common occurrence. This article explores the concept of forgiveness and its application in mental health nursing practice. It discusses the importance of forgiveness as a personal journey and healing process that enables nurses to let go of their negative feelings towards others. It also discusses self-forgiveness, which involves letting go of negative feelings towards oneself and demonstrating self-compassion.