This research is the first to provide insights into the experiences of gay men studying a university degree in Physical Activity and Sport Science (PASS) in Spain. Drawing on Bourdieu's categories, one-to-one semi-structured interviews were conducted with 11 PASS students and ex-students that were subsequently studied through deductive-inductive thematic analysis. Our findings show the PASS context to be a heteronormative, masculinised and cisgender social field. Male homosexuality was almost invisible except when antigay language was used. Considering this environment, most of our interviewees chose to remain in the closet, which contributed to low levels of wellbeing and high levels of stress and anxiety. However, the few students that chose to come out experienced relief and felt included by some of their classmates and by staff. Discussed are key aspects of the dominant culture in PASS faculties and the repercussions for the mental health and wellbeing of gay students. Our research also provides new insights into the nature and prevalence of microaggressions regarding sexual orientation that will help PASS and university management develop specific strategies and programmes to foster inclusivity.