| Mahaffey, Amanda | Recreation Supervisor | Recreation | 949-644-3166 | |
| Meeks, Joseph | Deputy City Attorney | City Attorney | 949-644-3136 | |
| Morris, Nadine | Life Safety Specialist II | Fire | 949-644-3105 | |
| Mollica, John | Fire Engineer 112 Hour | Fire | 949-644-3104 | |
| Mahnken, Brian | Firefighter Paramedic 112 Hour (Before 1-1-2016) | Fire | 949-644-3104 | |
| Medina, Carlos | Fire Captain 112 Hours | Fire | 949-644-3104 | |
| Mcallister, Brett | Firefighter Paramedic 112 Hour (Before 1-1-2016) | Fire | 949-644-3104 | |
| Martin, Steven | Firefighter Paramedic 112 Hour (Before 1-1-2016) | Fire | 949-644-3104 | |
| Maglinti, Avery | IT Manager | City Manager | 949-644-3091 | |
| Mason, Luke | Public Works Supervisor | Public Works Municipal Operations | 949-644-3067 | |
| Martinez, Andrew | Equipment Mechanic, Senior | Public Works Municipal Operations | 949-644-3063 | |
| Martin, Micah | Deputy Public Works Director - Municipal Operations | Public Works Municipal Operations | 949-644-3059 | |
| Matsuyama, Andrew | Lifeguard Captain | Fire | 949-644-3047 | |
| Miller, Christopher | Administrative Manager | Public Works | 949-644-3043 | |
| Mulvey, Jennifer | Administrative Assistant | City Clerk | 949-644-3026 | |
| Myers, Rochelle | Payroll Coordinator | Finance | 949-644-3022 | |
| Morgan, Shelby | Management Assistant | Public Works | 949-644-3013 | |
| Murray, John | Code Enforcement Supervisor | Community Development | 949-270-8137 | |
| Mastro, Martin | Harbor Services Worker | Harbor Department | | |
| Maberry, Scott | Harbor Services Worker, Lead | Harbor Department | | |
