| Leftige, Jason | Firefighter Paramedic 112 Hour (Before 1-1-2016) | Fire | 949-644-3104 | |
| Legault, Tom | Public Works Inspector, Senior | Public Works | 949-270-8134 | |
| Leon, Jasmine | Department Assistant | Community Development | 949-644-3201 | |
| Leon-Mis, Maritza | Human Resources Analyst, Senior | Human Resources | 949-644-3307 | |
| Lesieur, Emma | Senior Pool Lifeguard | Recreation & Senior Services | | |
| Leung, Grace | City Manager | City Manager | 949-644-3233 | |
| Leutbecher, William | Public Works Crew Chief | Public Works | 949-718-3489 | |
| Levin, Lucy | Recreation Leader, Senior | Recreation & Senior Services | | |
| Levin, Sean | Recreation & Senior Services Director | Recreation & Senior Services | 949-644-3159 | |
| Levins, Adam | Firefighter Paramedic 112 Hour (On Or After 1-1-2016) | Fire | 949-644-3355 | |
| Lewis, James | Lifeguard II | Fire | | |
| Liang, Andrew | Harbor Services Worker | Harbor Department | 949-270-8159 | |
| Liberto, Michael | Fire Captain 112 Hours | Fire | 949-644-3104 | |
| Librando, Davnette | Accountant, Senior | Finance | 949-644-3243 | |
| Light, Ian | Firefighter Paramedic 112 Hour (On Or After 1-1-2016) | Fire | 949-644-3113 | |
| Lightfoot, Rebecca | Library Services Manager | Library - City | 949-717-3819 | |
| Lim, Jeremiah | Accountant, Senior | Finance | 949-644-3242 | |
| Limon, Amelie | Senior Pool Lifeguard | Recreation & Senior Services | | |
| Lindeman, Marie | Administrative Assistant | Public Works | 949-644-3061 | |
| Lindroth, Ryan | Lifeguard II | Fire | | |
