In this article, the authors explore variation in the meanings of racial identity for African American students in a predominantly African American urban high school. They view racial identity as both related to membership in a racial group and as fluid and reconstructed in the local school setting. They draw on both survey data and observational data to examine the nature of racial identity meanings for African American students, their relation to academic engagement and achievement, and how they were fostered by the school context. Findings show that students embraced (and were offered differential access to) different meanings of African American racial identity and that these meanings were differentially related to achievement and engagement. (Contains 1 figure, 1 table and 8 notes.)