Objective: The objective of this study was to examine connections between university students' mental health and their knowledge and use of campus mental health services. Participants and Methods: In March 2001, a sample of undergraduate students (N = 266) completed a Web-based questionnaire, providing information related to their mental health, knowledge of mental health services, and use of those services. Results: Students who were mentally distressed were more likely to know about and use services; however, some students who reported to be mentally distressed either did not know about services or knew about services but did not use them. Living off campus, identifying as male, and having fewer years in college were related to less knowledge of campus mental health services. In addition, female sex and number of years in college were predictive of higher service use. Conclusions: With the high prevalence rates and severity of mental health problems, university mental health providers must continue to make strategic efforts to disseminate knowledge about mental health services to all students. (Contains 5 tables.)