Background/aim Patient suicide is an adversity that can be considered an “occupational hazard.” It has been identified as one of the most stressful adverse events during psychiatric training. The aim of this study was to systematically review the literature assessing the impact of patient suicide on trainees. Methods We conducted a systematic review on the MEDLINE, Science Direct, Scopus, and Web of Science databases. Studies that reported prevalence of patient suicide, quantitative or qualitative assessment of psychological and professional impacts, coping strategies, and support or educational and postvention programs were deemed eligible for inclusion. Results Of the 1994 articles identified, 22 were included. The literature on the topic was scarce, and the quality of the studies was moderate. No article dealt with nonpsychiatric residents. During their training, 46.4% of psychiatric trainees encountered at least one patient suicide. The traumatic impact was significantly more intense in trainees compared to senior physicians. A negative impact on their professional practice was reported by 17% to 39% of trainees. Formal institutional support for the affected trainees was described as having major shortcomings, and informal support from peers and families was reported as the most helpful response. However, 52% of impacted trainees considered encountering patient suicide a useful and beneficial experience. Conclusion The frequent posttraumatic symptoms and the negative professional consequences following patient suicide are worrying phenomena that highlight the need to improve suicide prevention and postvention programs during psychiatric training. Identifying trainees with personal vulnerability factors should be a major concern during the postvention process.