The study and practice of medicine are known to contribute to burnout in medical students and junior doctors. There is limited data on the degree of mental health burden for Australian medical students and doctors-in-training (DiT). This scoping review aims to explore the impact of medical training on the mental health of Australian medical students and DiT. Exploring the mental health landscape across different stages of training will help to establish putative factors underlying psychiatric comorbidities in this demographic. The Joanna Brigs Institute (JBI) framework for scoping review was utilized, involving the Population/Concept/Context (PCC) criteria to identify the target population and develop the search strategy. Peer-reviewed articles, published in English from 2012 to 2022 focusing on Australian medical students' and doctors-in-training mental health were considered. Of the 177 articles identified, 24 studies were included in the review. The majority of the studies focused on DiT (n = 19) of which interns and residents were most well represented (n = 12) followed by surgical training (n = 5), with general practice (GP) (n = 2) and physician specialties (nil) being poorly represented. Most studies were quantitative (n = 18), with qualitative studies(n = 6) under represented. Common mental health themes identified were overall psychological distress, burnout, and depression/suicidal ideation with workplace harassment and discrimination being less well represented. Australian DiT are not equally represented in the literature with how different specialty training pathways impact their mental health. Most studies were cross-sectional, preventing a detailed longitudinal assessment of burnout and work-associated psychological distress.