On campus, the Catholic student community is supported by the Catholic chaplain. The chaplain helps coordinate Mass and holiday services as well as serving as a religious advisor to Catholic students. A wide variety of priests from local universities and schools celebrate Mass at Bethlehem Chapel during the school year. The Catholic services at Brandeis draw more than just students, as many families from the Waltham community attend. Weekly Mass services are held on Sundays at 10 a.m. in Bethlehem Chapel, as well as on major holidays.
Catholic students at Brandeis can also join the Catholic Student Organization (CSO). In addition to providing a space for Catholic students to discuss their faith, the CSO holds community events, such as an annual Christmas tree decorating in the Shapiro Campus Center. The CSO holds events in the Multi-Faith Lounge, Bethlehem Chapel, or the Intercultural Center.