This qualitative study of a British Islamic independent school explores the construction of religious masculinities within the lives of a cohort of Muslim adolescent males. An ethnographic analysis is presented whereby boys’ physical education is located as a strategic site for the development of Muslim masculine identities. Adopting a symbolic interactionist perspective, the article discusses the representation of pupil masculinities within the school and the specific role that Islam, sport, and physical education played in respondent lives. Findings highlight how religion provided a central mechanism through which pupils sought to construct and negotiate their masculine selves. In turn, physical education served as an avenue through which respondents could embrace and embody their sense of self and express a series of broader religious ideals.