| Name | Title | Phone | Email |
| Leibold, Mary Beth | Associate Professor of Sport Management; Division Chair: Business and Management; Chair: Sport Management Program | 517-264-7624 | mleibold@sienaheights.edu |
| Lemanowicz, Patricia | Administrative Assistant Monroe County Community Program | 734-384-4133 | plemanow@sienaheights.edu |
| LeMay, Joni D. | Athletic Department Secretary | 517-264-7870 | jlemay@sienaheights.edu |
| Leonard, Timothy A. | Associate Professor of Political Science; Division Chair: Social and Behavioral Science | 517-264-7851 | tleonard@sienaheights.edu |
| Li, Jie | Cataloger/Technical Services Library | 517-264-7151 | jli@sienaheights.edu |
| Lindstrom, Jeffrey | Associate Professor of Psychology | 517-264-7852 | jlindstr@sienaheights.edu |
| Lorenz, Michael L. | Associate Professor of Music/Director of the Audio Recording and Jazz Programs | 517-264-7896 | mlorenz@sienaheights.edu |
| Lyall, James M. | Head Football Coach | 517-264-7833 | jlyall@sienaheights.edu |