Faculty development is a key component of undergraduate and graduate medical education and is required for accreditation. Many institutions face the challenges of training large numbers of faculty at multiple locations on a recurring basis. In order to meet the faculty development demands of our organization, we implemented a train-the trainer model of faculty development. A train-the-trainer program was created using deliberate practice as the theoretical framework. The primary goals of the program were to enhance content knowledge and develop facilitation skills of the participants (called faculty trainers). Two separate cohorts received 40 hours of in-person training consisting of attending the faculty development workshops as a learner, providing feedback to course faculty, facilitating and participating in journal club sessions on relevant content, and practicing facilitation and receiving feedback on the workshops. Cohorts 1 and 2 were trained on how to deliver 6 and 7 workshops, respectively. An additional 16 hours of training and further feedback occurred when faculty trainers delivered the workshops at outside institutions. Twenty-nine faculty trainers from 15 specialties and subspecialties were trained, including 18 in the first cohort (January 2018) and 14 in the second cohort (February 2019) with 3 who participated in both cohorts. From January 2018 to January 2020, faculty trainers delivered 298 workshops to 3742 attendees at 25 locations. For the faculty trainers, 1477 evaluations were completed with 1031 (88.1%) rated as excellent, 141 (9.5%) rated as good, and 8 (0.5%) as average. There were no fair or poor ratings. Our train-the-trainer program effectively developed a community of national faculty developers. Faculty trainer output was substantial and early evaluations of performance were positive. The model outlined in this paper serves as a potential sustainable model for other institutions desiring to train a cadre of faculty developers for their organization.