Chinua Achebe’s African Trilogy—Things Fall Apart (1958), Arrow of God (1964), and No Longer at Ease (1960)—is a profound critique of Western education’s role in fostering cultural dislocation and establishing neocolonial structures in Nigeria. Employing a qualitative textual analysis in the light of neocolonial, postcolonial and Afrocentric theories, the study argues that Achebe portrays western education not as a neutral tool of enlightenment but as a primary instrument of cultural imperialism. The analysis traces the generational impact of this ‘educational colonization’ beginning with the initial societal schism and personal alienation of characters like Nwoye in Things Fall Apart. It then explores the institutional erosion and the subversion of traditional authority in Arrow of God, epitomized by Ezeulu’s tragic miscalculation. Finally, it culminates in the internalized identity crisis and moral collapse of the western-educated elite, represented by Obi Okonkwo in No Longer at Ease. In conclusion, this paper shows that Achebe’s trilogy skillfully illustrates how the legacy of colonial project endures through the minds it shaped as it leaves a heritage of dislocation that continues to define the post-colonial condition.