The present paper advances theoretical propositions regarding the relationship between acculturation and identity. The most central thesis argued is that acculturation represents changes in cultural identity and that personal identity has the potential to "anchor" immigrant people during their transition to a new society. The article emphasizes the experiences of nonwhite, non-Western immigrant people moving to Western nations. The article also calls for research on heretofore unexplored aspects of the relationship of acculturation to personal and social identity. Ideas are proposed for interventions to promote cultural identity change and personal identity coherence.