The recent changes in global student mobility on U.S. higher education campuses call for increased attention to international student recruitment and retention. One of the approaches that universities can adopt in response to these changes involves addressing career-related concerns that are among those of most significance to international students. It is possible that international students improve career outcomes with increased levels of on-campus involvement. The purpose of this study was to examine how on-campus involvement, such as holding a membership or a leadership position in a student organization, was related to the career decision self-efficacy of international undergraduate business students at a private university in the mid-Atlantic United States. The research sub-questions explored whether this relationship changed based on the length of involvement, the year of study, and the type of involvement while controlling for perceived cultural distance and demographic variables. The results of multiple regression analyses showed that student involvement had a significant relationship with career decision self-efficacy, but this relationship was not always in the expected direction. Serving in a student leadership role for six months to less than a year appeared to contribute to international students' career decision-making. However, international students with more than one year of leadership experience did not demonstrate higher career decisions self-efficacy scores. Previous on-campus involvement appeared to be a significant predictor among student organization members, but not among student leaders. Overall, international students' career decision self-efficacy did not change based on the year of study. Student leadership was found to be a more significant predictor of career decision self-efficacy than a membership in a student organization. While controlling for perceived cultural distance, the study showed that it did not appear to be significant. Based on these findings, the study offered implications for higher education research, practice, and institutional policy to support international students' career decision making and professional outcomes. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com.bibliotheek.ehb.be/en-US/products/dissertations/individuals.shtml.]