| Madden, Ricky | Lieutenant Crime Reduction Unit (CRU) | Sheriff's Office | | Email |
| Maffett, Catie | Victim's Services Office Manager | Sheriff's Office | (864) 942-8537 | Email |
| Malone, Amanda | Family Court | Clerk of Court Department | (864) 942-8575 | Email |
| Mansel, Cerrior | School Resource Officer (Genesis Education Center) | Sheriff's Office | (864) 943-8052 | Email |
| Martin, Cindy | Accounting Specialist - Accounts Payable | Treasurer Department | (864) 942-8505 | Email |
| Mash, Colleen | Part Time Clerk | Voter Registration Department | (864) 942-8585 | Email |
| McAllister, Rhonda | Human Resources Director | Human Resources Department | (864) 942-5676 | Email |
| McCarty, Rodney | Recycling Supervisor- Transportation | Public Works Department | (864) 942-8567 | Email |
| McCoy, Carolyn | H R Clerk/ Intern Coordinator | Human Resources Department | (864) 942-8503 | Email |
| McCrickard, Kim | Detention Center Administrative Assistant | Sheriff's Office | (864) 943-8061 | Email |
| McGee, Sara | Accounting Specialist- Accounts Receivable | Treasurer Department | (864) 942-3140 | Email |
| McIntyre, Susan | Administrative Assistant to the County Manager | County Administration Department | (864) 942-8507 | Email |
| McKellar, Tracy | Administrative Assistant | Lake Management Department | (864) 942-8560 | Email |
| McKinney, George | Emergency Management Coordinator | Emergency Management Department, Emergency Services | (864) 942-8553 | Email |
| McMahon , Maggie | Litter Prevention Coordinator | Public Works Department | (864) 942-8705 | Email |
| Miller, Cathy | Treasurer | Treasurer Department | (864) 942-8762 | Email |
| Mills, Matthew | Road Maintenance Superintendent | Public Works Department | (864) 942-8616 | Email |
| Moates, Chuck | County Council - District Four | County Council | (864) 227-0829 | Email |
| Mobley, Stephen | Interim Director of Facilities Maintenance | Maintenance Department | (864) 942-8674 | Email |
| Montgomery, Tammie | Commissary / Food Services Coordinator | Sheriff's Office | (864) 943-8029 | Email |
