Auditory hallucinations (voices) are a commonly reported form of hallucination and can be a highly distressing symptom of psychosis. Cognitive models of voice-hearing are well established and propose that the way individuals appraise their voices will influence their emotional and behavioural reactions to these experiences. We argue that trauma and insecure attachment have a growing database of connectedness to voice-hearing, with longitudinal research suggesting that childhood adversity plays a casual role in the development of voices. We propose models of voice hearing that draw on attachment theory. The chapter concludes by outlining treatment implications and future research directions in order to enhance the understanding of underlying mechanisms linking trauma, attachment and voices.