The current article seeks to analyze the bond between nationality and religion in the poetry of the constitutional era with an emphasis on Muhammad Taghi Bahar’s and Seyed Ashrafuddin Husseini’s Poetry. It also attempts to provide answers to the following questions. First, is the notion of national orientation in conflict with the religious worldview, albeit within the limits of the current research? Second, how and with what elements is the link between religion and nationality within the scope of current research manifested? Given this research's significance, it is worth noting that one of the critical issues in the contemporary world is the relationship between nationality and religion. No independent study has explored the relationship between religion and nationality, addressed the questions of the present study, especially the second question. The research approach of the current study is based on content analysis conducted via the descriptive-analytical method. The analysis of the poets’ poetry regarding religion and nationality has indicated that nationality and religion do not oppose each other. Instead, they are interrelated and mutually interact. Their relationship incarnates itself in the bond between not only the national element of the home country and religion but also the national element of historical-cultural manifestation and the element of religious role models.