Background: Religiosity is known to have a socio-cultural influence on food choice. However, to date, research exploring the influence of Islam on food selection has almost exclusively focused on fasting during Ramadan and has not explored the influences of Islam on everyday food choices among Muslim people. Aim: This qualitative study explored the influence of Islamic religiosity on everyday food choices among Muslim people. Methods: Thirty-two adult participants residing in the United Kingdom (n = 16 faith leaders and n = 16 lay Muslim people) were recruited from three Sunni mosques, and data was collected using semi-structured interviews. The data was analysed using reflexive thematic analysis and a constant comparison method was applied to draw out similarities and differences between faith leaders and lay Muslim people. Results: The results revealed that Islamic religiosity had an influence over food choice with two main overarching themes 1) Demonstrating religious obedience through food choices and, 2) Spheres of influence on food choice; and five sub-themes 1a) Trusting in familiar food providers, 1b) Verification of halal authenticity, 1c) Seeking purity within food, 2a) The Prophet Muhammed (Peace Be Upon Him) as a role model for food choice and, 2b) Islamic jurisprudence. Conclusion: These findings provide important insights into the influence of Islam on food choice and could be used support the design of faith-informed dietary interventions among Muslim people. Further research is required to examine the role of faith-informed dietary intervention in the Muslim community.