The purpose of the current study was to test the role that components of ethnic identity (i.e., exploration and resolution) play in academic achievement, and to examine mental health, racial discrimination, and gender as moderators of these associations among Black college students. Participants included 341 college students who identified as a Black/African American female or male ( M age = 18.4; SD = .34), and completed measures of ethnic identity, perceived racial discrimination, and mental health. Results indicated that higher levels of ethnic identity exploration were associated with a lower grade point average (GPA) among males with higher levels of depressive symptoms, but not among males with lower levels of depressive symptoms. Similarly, higher levels of ethnic identity resolution were associated with a lower GPA among males with higher levels of anxiety symptoms, but not males with lower levels of anxiety symptoms. Findings may have implications for clinical and educational interventions by highlighting the nuanced ways that ethnic identity, mental health, and gender affect Black college students’ academic achievement.