There are an estimated 427,000 undocumented college students enrolled in higher education. Undocumented college students encounter unique challenges associated with their precarious immigration status that impacts their psychological well-being. In this article, we contextualize the mental health of undocumented college students and the role of college mental health services and professionals in supporting college students' psychological well-being. We end with recommendations and, in some cases, examples for campus mental health services, college counseling professionals, and counseling-related preparation programs to develop policies and practices that affirm and support the mental health of undocumented college students.