A great place to start is the Office of the University Chaplain (OUC). The OUC ministers to the individual faiths of Columbia University's diverse community of scholars, students and staff from many different faith traditions while promoting interfaith and intercultural understanding. Toward this goal, the Office of the University Chaplain creates and sponsors programs concerning justice, faith, and spirituality. Part of the OUC is the United Campus Ministries (UCM), an umbrella organization comprised of clergy of different faith traditions and serves the needs of the diverse religious communities at Columbia, including weekly meetings and worship services. In addition to connecting with others through traditional religious ceremonies, services and pastoral counseling, you can meet others through their wide assortment of lectures, outreach projects and discussion groups.
Columbia also has a diverse array of over thirty religious, spiritual, and faith-based student organizations. All groups are open to every student, including those who may practice the same beliefs as well as anyone interested in learning more about various faiths and practices.