This grounded theory study explored the experiences of undergraduate Black men within predominantly White institutions with the goal of explaining their leader identity development process. Studies focusing on Black men's leadership development are limited compared to the majority of leadership development studies. More specifically, prior to this study, there were no studies that highlighted the leader identity development process of Black men. Komives et al.'s (2005) study provided a framework for researchers to begin to understand the identity development process of leaders within the collegiate environment. However, because of the limited representation of Black men participating in this study, further research is required to better understand the identity development process of undergraduate Black men. The researcher collected data from 10 institutions. From these intuitions, the researcher interviewed 11 participants. In addition to the interviews, participants were asked to complete a reflection prompt regarding their definition of leadership. All the interviews and reflection journals were analyzed using Charmaz's (2014) constructivist grounded theory data analysis methods. The data analysis resulted in a grounded theory of the leader identity development process of Black men. This study outlines the theory and model of leader identity development of undergraduate Black men. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]