| Name | Title | Phone | Email |
| Raab, Joseph | Assistant Professor | 517-264-7673 Ext. | jraab@sienaheights.edu |
| Radecki, Thomas R., Ph.D. | Professor of Social Psychology and Political Science | 517-264-7854 Ext. | tradecki@sienaheights.edu |
| Rae, Sally | Associate Professor of Education/Director of Teacher Education | 517-264-7892 Ext. | srae@sienaheights.edu |
| Rasmussen, Mark Steven, M.A. | Instructor | 517-264-7658 Ext. | mrasmuss@sienaheights.edu |
| Rawson, Michele | Secretary: Social and Behavioral Sciences | 517-264-7850 Ext. | mrawson@sienaheights.edu |
| Ray, Debrah | Head Women's Golf Coach | Ext. | dray@sienaheights.edu |
| Reed-Maxfield, David | Adjunct Faculty: Philosophy | 248-799-5490 Ext. | dreed@sienaheights.edu |
| Reinink, Barry D. | Adjunct Faculty: Counselor Education | 517-264-7665 Ext. | breinink@sienaheights.edu |
| Reinke, Jeffrey L. | Maintenance | 517-264-7128 Ext. | jreinke@sienaheights.edu |
| Reising, Christine A. | Professor of Art | 517-264-7866 Ext. | creising@sienaheights.edu |
| Richards, Kirk N. | Assistant Men's and Women's Cross Country and Track Coach | 517-264-7881 Ext. | krichar2@sienaheights.edu |
| Richman, Lisa | Writing Center Director | 517-264-7674 Ext. | lrichman@sienaheights.edu |
| Ries, Peter | Adjunct Faculty: Religious Studies | 517-264-7690 Ext. | pries@sienaheights.edu |
| Riggs, Liesel A. | Communication Specialist | 517-264-7147 Ext. | lriggs1@sienaheights.edu |
| Rink, Gloria M. | Custodian | 517-264-7127 Ext. | grink@sienaheights.edu |
| Ritz, Robert | Learning Specialist/ADA Coordinator | 517-264-7683 Ext. | rritz@sienaheights.edu |
| Robbins, Monica Mae | McNair Program Coordinator | 517-264-7160 Ext. | mrobbins@sienaheights.edu |
| Roberts, Mary | Administrative Assistant | 517-264-7195 Ext. | mroberts@sienaheights.edu |
| Rockwood, Richard C. | Maintenance | 517-264-7128 Ext. | rrockwoo@sienaheights.edu |
| Rosas, Elizabeth | Custodian | 517-264-7127 Ext. | erosas@sienaheights.edu |
| Ross, Robin | Academic Advisor | 269-927-8100 Ext. 5025 | rross@sienaheights.edu |
| Rothrock, Charles | Adjunct Faculty: Human Services Admin. | 800-203-1560 Ext. | crothroc@sienaheights.edu |
| Ruesink, Martha J. | Secretary CMS Division | 517-264-7640 Ext. | mruesink@sienaheights.edu |
| Ryder, Gail | Instructor of Humanities | 248-799-5490 Ext. | gryder@sienaheights.edu |