We review and critically examine 178 articles whose authors have investigated numerous aspects of diversity training programs on campuses and in the workplace. We first examine the characteristics of the research, including sample, study method, and theoretical framework. Consistent with the training framework of Baldwin and Ford (1988) and Blume and colleagues (2010), we then organize the articles by the context of training, training design, trainees' characteristics, and training outputs. Although we found a myriad of different forms, shapes, and combinations of diversity training in terms of its design elements, some programs (e.g., integrated training) were relatively rare, yet authors viewed them more positively than other programs (e.g., stand-alone training). We discuss gaps in the literature and provide suggestions for future research on diversity training.