Mental Health First Aid training is designed to equip people with the skills to help others who may be developing mental health problems or experiencing mental health crises. This training has consistently been shown to increase: (1) the recognition of mental health problems; (2) the extent to which course trainees' beliefs about treatment align with those of mental health professionals; (3) their intentions to help others; and (4) their confidence in their abilities to assist others. This paper presents a discussion of the potential role of Mental Health First Aid training in undergraduate mental health nursing education. Three databases (CINAHL, Medline, and PsycINFO) were searched to identify literature on Mental Health First Aid. Although Mental Health First Aid training has strong benefits, this first responder level of education is insufficient for nurses, from whom people expect to receive professional care. It is recommended that: (1) Mental Health First Aid training be made a pre-requisite of pre-registration nurse education, (2) registered nurses make a larger contribution to addressing the mental health needs of Australians requiring care, and (3) current registered nurses take responsibility for ensuring that they can provided basic mental health care, including undertaking training to rectify gaps in their knowledge.