| Mejia, Maria | Contractor | Public Works | | |
| Marlin, Kevin | Contractor | Public Works | | |
| Marlen-Starr, Spencer | Contractor | Public Works | | |
| Maravillamendoza, Ana | Contractor | Public Works | | |
| Maravillamendoza, Kembily | Contractor | Public Works | | |
| Marshall, Jake | Civil Engineer, Associate | Public Works | 949-644-3323 | |
| Miller, Christopher | Administrative Manager | Public Works | 949-644-3043 | |
| Myers, Jordyn | Recreation Leader, Senior | Recreation & Senior Services | | |
| Moreno, Ashlee | Recreation Leader, Senior | Recreation & Senior Services | | |
| Morales, Yarely | Senior Pool Lifeguard | Recreation & Senior Services | | |
| Molina, Stephanie | Department Assistant | Recreation & Senior Services | 949-718-1856 | |
| Metcalf, Audrey | Senior Pool Lifeguard | Recreation & Senior Services | | |
| Mendoza, Princess | Recreation Leader, Senior | Recreation & Senior Services | | |
| Melero, Stephanie | Recreation Coordinator | Recreation & Senior Services | 949-718-1827 | |
| Materassi, Luca | Recreation Leader, Senior | Recreation & Senior Services | | |
| Martinez, Emilio | Recreation Leader, Senior | Recreation & Senior Services | | |
| Martin, Stella | Senior Pool Lifeguard | Recreation & Senior Services | | |
| Moureaux, James | Utilities Specialist, Senior | Utilities | 949-718-3416 | |
| Miller, Landin | Water Production Supervisor | Utilities | 949-718-3422 | |
| Millard, Brent | Utilities Supervisor | Utilities | 949-718-3414 | |
