This paper examines the evolving role of religion in the discourse and political strategy of six European populist radical right (PRR) parties- Fratelli d'Italia, VOX, Alternative für Deutschland, Fidesz, the Slovak National Party, and the Sweden Democrats- between 2019 and 2024. Drawing on Pierre Ostiguy's socio-cultural approach, the analysis argues that religion operates primarily as a cultural, symbolic, and performative resource rather than as a coherent theological or civilizational framework, supporting that these parties do not fit either the civilizationist or the devout and conservative model. Christian references are mobilized to demarcate boundaries between a morally "authentic" people and secular, cosmopolitan, or Europeanized elites, while simultaneously functioning as a marker of national identity, traditional values, and social order. Across cases, religious symbolism is increasingly intertwined with narratives of traditionalism, sovereignty, and Euroscepticism, reinforcing affective appeals to belonging, grievance, and moral decline. Rather than articulating substantive religious worldviews, PRR actors deploy Christianity as a flexible repertoire of signs, rituals, and moral cues that enhance claims of cultural continuity and popular authenticity. By comparing party-specific trajectories, the study contributes to debates on religion and populism by showing how religious language and symbolism are reconfigured within contemporary PRR politics to serve boundary-making, polarization, and identity construction, without entailing a fully developed religious or civilizationist project. The findings highlight the importance of performativity, affect, and symbolic politics in understanding the contemporary entanglement of religion, nationalism, and PRR mobilization in Europe.