| Logan, Nicole | Recreation Leader, Senior | Recreation & Senior Services | | |
| Loke, Eric | Civil Engineer, Senior | Public Works | 949-644-3336 | |
| Long, Jacob | Fire Captain 112 Hours | Fire | 949-644-3355 | |
| Loo, Bryan | Civil Engineer, Associate | Public Works | 949-644-3324 | |
| Lopez, Gabriel | Contractor | Public Works | | |
| Lopez, Vanessa | Recreation Leader, Senior | Recreation & Senior Services | | |
| Lowengrub, Hillary | Lifeguard II | Fire | | |
| Lowman, Jonathan | Harbor Services Worker, Lead | Harbor Department | | |
| Lucas, Alexis | Fire Engineer 112 Hour | Fire | 949-644-3368 | |
| Luchavalencia, Vidal | Contractor | Public Works | | |
| Lunde, Ty | Fire Captain 112 Hours | Fire | 949-644-3374 | |
| Lutgen, Mary | Librarian I | Library - City | 949-717-3897 | |
| Lynch, Michael | Utilities Supervisor | Utilities | 949-718-3415 | |
| Maberry, Scott | Harbor Services Worker, Lead | Harbor Department | 949-270-8159 | |
| Madsen, Bryce | Lifeguard II | Fire | | |
| Magana, Vanessa | Library Clerk II | Library - City | 949-717-3857 | |
| Maglinti, Avery | IT Manager | City Manager | 949-644-3091 | |
| Mahnken, Brian | Fire Captain 112 Hours | Fire | 949-644-3104 | |
| Malsy, Mikaela | Library Clerk I | Library - City | 949-644-3075 | |
| Mannon, Joseph | Lifeguard I | Fire | | |
