A core tenet of medical education is the expectation that senior residents will teach junior residents and medical students. However, many general surgery residency programs lack a formalized curriculum to equip trainees with necessary teaching skills. We evaluated the impact of resident-led residents-as-teachers (RAT) workshops (RATW) and assessed adaptability from in-person to virtual delivery. We hypothesized these courses would improve trainees' confidence in their roles as resident-teachers.Pre-COVID-19, an in-person workshop for residents (PGY1-5) was conducted over two days. During the COVID-19 pandemic, a virtual RATW for incoming interns (PGY1) was conducted during intern boot camp. Topic fidelity was preserved between the two RATWs. Resident-educators were responsible for content and delivery; the program director and associate program directors served as facilitators only. Surveys were used to evaluate residents' confidence in four core topics. A Wilcoxon test was used to compare quantitative data.There was significant improvement in confidence in all areas following RATW attendance, except for "Teaching in the OR". In sub-analysis, there was a significant improvement in this category among incoming interns post-RATW (P < 0.001). The majority of interns agreed that the RATW helped them transition into their new teaching role and agreed that the resident-led RATW was effective.A resident-designed and resident-led RAT curriculum in general surgery effectively improves residents' confidence in teaching and is well received by residents. We recommend the implementation of a RAT curriculum in general surgery residency and intern boot camp. The RATW was well adapted to distance-learning format.