Background: Every six seconds, someone in the world dies because of injury. Trauma is a major public health problem and leads to significant mortality and morbidity worldwide. Healthcare provider training can affect patient outcomes; therefore, it is useful to examine the efficacy of trauma training programmes. This scoping review aimed to determine the impact of trauma training or education on healthcare providers' confidence. Method: Ovid MEDLINE, Ovid Embase, Ovid Emcare, CINAHL, Scopus, Google Scholar and Trove were systematically searched on 7 August 2021, and a methodology adopted to ensure the scoping review was comprehensive. Results: A total of 749 articles were retrieved, of which 15 were eligible for the scoping review. After the articles were analysed, two themes—knowledge and experience—were identified. Knowledge improved from attending courses. However, knowledge retention fell over time. Participants reported that their confidence improved after attending courses, but an inverted correlation was observed between experience and knowledge. Conclusion: Trauma training courses improve the confidence of healthcare providers. However, these courses should be conducted regularly and trainees observed to assess their confidence. Further studies should be conducted to evaluate the effect of these courses on practitioner confidence.