| Lunde, Ty | Fire Captain 112 Hours | Fire | 949-644-3374 | |
| Luchavalencia, Vidal | Contractor | Public Works | | |
| Lucas, Alexis | Fire Engineer 112 Hour | Fire | 949-644-3368 | |
| Lowman, Jonathan | Harbor Services Worker, Lead | Harbor Department | | |
| Lowengrub, Hillary | Lifeguard II | Fire | | |
| Lopez, Vanessa | Recreation Leader, Senior | Recreation & Senior Services | | |
| Lopez, Gabriel | Contractor | Public Works | | |
| Loo, Bryan | Civil Engineer, Associate | Public Works | 949-644-3324 | |
| Long, Jacob | Fire Captain 112 Hours | Fire | 949-644-3355 | |
| Loke, Eric | Civil Engineer, Senior | Public Works | 949-644-3336 | |
| Logan, Nicole | Recreation Leader, Senior | Recreation & Senior Services | | |
| Liu, Zhengyang | Civil Engineer - Plan Check | Community Development | 949-644-3202 | |
| Littrell, Caine | Lifeguard II | Fire | | |
| Lindroth, Ryan | Lifeguard II | Fire | | |
| Limon, Amelie | Senior Pool Lifeguard | Recreation & Senior Services | | |
| Lim, Jeremiah | Accountant, Senior | Finance | 949-644-3242 | |
| Lightfoot, Rebecca | Library Services Manager | Library - City | 949-717-3819 | |
| Light, Ian | Firefighter Paramedic 112 Hour (On Or After 1-1-2016) | Fire | 949-644-3113 | |
| Librando, Davnette | Accountant, Senior | Finance | 949-644-3243 | |
| Liberto, Michael | Fire Captain 112 Hours | Fire | 949-644-3104 | |
