| Klemenz, Thomas | Supervisor Building Facilities | Fire Services | (203) 946-6217 |
| Knauff, Gretchen | Director of Disability Services | Corporation Counsel, Disability Services | (203) 946-7651 |
| Kong-Brown, Amoy | Administrative Assistant | Economic Development Administration | (203) 946-8577 |
| Kops, Melissa A. | Project Manager-Architect | Engineering | (203) 946-6447 |
| Koutoumbas, Dimitris | Traffic Safety Engineer | Transportation, Traffic & Parking | (203) 946-6455 |
| Kruse, Sally | Director of Port Authority | Port Authority | |
| Kuang, Shirley | Director of State & Federal Legislative Affairs | Mayor's Office | (203) 946-7653 |
| Ladson, Robin | Benefits Administrator | Human Resources | (203) 946-7157 |
| Laffitte, Carleen | Chief Accountant | Finance Department | (203) 946-4815 |
| Lage, Fernando | Urban Forester | Parks Department | (203) 946-8004 |
| Lahey, John | Project Manager | Housing & Development Administration | (203) 946-6027 |
| LaMarr, Catherine | Deputy Corporation Counsel | Corporation Counsel | (203) 946-7974 |
| Laroche, Gary | Supervisor Prop Maintenance | Livable City Initiative | |
| Lavado-Ponce, Ingrid | Assessment Information Clerk II | Assessor’s Office | (203) 946-4908 |
| Lawton, Celestine | Administrative Assistant II | Community Services Administration | (203) 946-8504 |
| Lee Rodriguez, Michelle | Assistant City Town Clerk | City Clerk | (203) 946-8348 |
| Lennon Jr., Richard | Recreation Supervisor | Youth and Recreation Department | |
| Leonard, John | Asst. Corp. Counsel | Corporation Counsel | (203) 946-7963 |
| LEWIS, DARRYL | PARKING ENFORCEMENT OFFICER | Transportation, Traffic & Parking | |
| Logan, Brooke | Deputy Director of Health | Health Department | (203) 946-8351 |
| Longo, Shellie | Senior Sanitarian | Health Department | (203) 946-8332 |
| Lopez, Luis | Animal Control Officer | Police Services | (203) 946-8110 |
| Lopez, Monika | Public Health Nursing Coordinator | Health Department | (203) 946-2395 |
| Lucas, Albert | Director of Legislative Services | Board of Alders Legislative Services | (203) 946-8371 |
| LUMPKIN, JASON | TRAFFIC MAINTENANCE WORKER | Transportation, Traffic & Parking | |
| Lupo, Frank | Assistant Building & Plans Official | Office of Building Inspection & Enforcement | (203) 946-2808 |
| Mack, Dean | Deputy Director, Economic Development | Economic Development Administration | (203) 946-5335 |
| Mahon, Michael | Receivables Collector | Finance Department | (203) 946-6401 |
| Maidelis, Meghan | Fire Inspector | Fire Services | (203) 946-6224 |
| MAITLAND, CARLA | CHIEF SCHOOL CROSSING GUARD | Transportation, Traffic & Parking | (203) 946-8072 |
| Mallison Jr., Gerald | Management Policy Analyst | Finance Department | (203) 946-7905 |
| Mancini, Kristin | Technical Services (Cataloging & Acquisitions) | Public Library | (203) 946-8127 |
| Mancuso, Sam | Overdose Prevention Project Manager | Health Department | (203) 946-3031 |
| Mariotti, Anna | Economic Development Officer / Project Manager | Economic Development Administration | (203) 946-3276 |
| Marquez Perez, Kengli | Lead Poisoning Inspector | Health Department | (203) 946-6798 |