This paper provides a comparative rhetorical analysis of Nigeria’s two national anthems: “Nigeria, We Hail Thee” and “Arise, O Compatriots.” Adopted at different junctures in the nation’s post-independence history, these anthems serve as potent symbols of Nigeria’s evolving national identity, political ideologies, and socio-cultural values. This study examines the rhetorical structures, persuasive appeals (ethos, pathos, and logos), and stylistic devices employed in each anthem to construct and project a vision of the Nigerian nation. Drawing on a framework that integrates rhetorical analysis, postcolonial theory, and symbolic discourse analysis, the paper argues that the shift from “Nigeria, We Hail Thee” to “Arise, O Compatriots,” and the recent controversial decision to revert to the former, reflects a deeper national dialogue about Nigeria’s colonial past, its present struggles, and its future aspirations. The analysis reveals that while “Nigeria, We Hail Thee” embodies a rhetoric of hopeful idealism and unity in diversity, “Arise, O Compatriots” adopts a more urgent and nationalistic tone, emphasizing sacrifice and a collective call to action. By juxtaposing these two foundational texts, this study illuminates the complex interplay between rhetoric, power, and the construction of national identity in a postcolonial African state. The findings contribute to a deeper understanding of how national symbols are imbued with meaning and contested in the ongoing process of nation-building.