| Gruber, Killian | Coordinator of Resident Services | Chief Administrator's Office | (203) 946-4984 |
| Guzhnay, Alex | Legislative Liaison to the Board Of Alders | Board of Alders Legislative Services, Mayor's Office | (203) 946-7670 |
| Hall, Jennifer | Immunization Action Plan Coordinator | Health Department | (203) 946-7257 |
| Halsey, Eliza | Community Services Administrator | Community Services Administration | (203) 946-7907 |
| Hammett, Michael | Housing Code Inspector | Livable City Initiative | (203) 946-2286 |
| Hatton, Hershey | Administrative Assistant II | Parks Department | (203) 946-6960 |
| Hayden, Donald | Fiscal Analyst | Board of Alders Legislative Services | (203) 946-6045 |
| Hayward, John | Inspector | Commission on Equal Opportunities | (203) 946-5244 |
| Hendricson, Courtney | Deputy Director Economic Development | Economic Development Administration | (203) 946-8295 |
| Henning, Dawn | Assistant City Engineer | Engineering | (203) 946-8101 |
| Hernandez, Miguel | Contract Analyst | Purchasing Division | (203) 946-8203 |
| Herrera, Alejandra | Accounts Payable Auditor II | Finance Department | (203) 946-8288 |
| HERRERA, CARLOS | METER CHECKER | Transportation, Traffic & Parking | |
| Hilton, Donnell | Planner II | City Plan | (203) 946-5128 |
| Hinton, Genoveva | Program Coordinator | Office of Building Inspection & Enforcement | (203) 946-5758 |
| Hladun, Stephen | Deputy Director | Parks Department | (203) 946-8576 |
| HOFFMAN, ERIC | DEPUTY DIRECTOR - PARKING | Transportation, Traffic & Parking | (203) 946-8077 |
| HORNER, CHERYL | PARKING ENFORCEMENT OFFICER | Transportation, Traffic & Parking | |
| Hougrand, Nate | Deputy Director of Zoning | City Plan | (203) 946-6375 |
| Hudson, Jamie | Program Coordinator | Office of Building Inspection & Enforcement | (203) 946-6412 |
| Huggins, Marian | Branch Manager-Mitchell | Public Library | (203) 946-6514 |
| Huggins, Ronald | Deputy Director Youth Services | Youth and Recreation Department | (203) 946-7665 |
| Iannuzzi, Jean | Management & Policy Analyst | Finance Department | (203) 946-2920 |
| Inquiries, General | | Fair Rent Commission | |
| IT, HELP DESK | New Haven IT Help Desk | Information Technology | |
| Jackson, Dawn | Payroll/Benefit Auditor | Finance – Payroll & Pension | (203) 946-8290 |
| Jackson, Dawn | Data Control Clerk II | Finance Department | (203) 946-8290 |
| Jackson, Raymond | Neighborhood Specialist | Livable City Initiative | (203) 946-2901 |
| Jacobs, Eve | Accounts Payable Auditor II | Finance Department | (203) 946-8306 |
| Jacobs, Katherine | Chief Landscape Architect | Engineering | (203) 946-8095 |
| Jacobson, Karl | Chief of Police | Police Services | (203) 946-6333 |
| James-Marquis, Shaunette | Community Outreach Worker | Community Services Administration | (203) 946-7056 |
| Jautz, Sharon | Talent Acquisition and Training Lead | Human Resources | (203) 946-8399 |
| Jefferson, Adriane | Director of Cultural Affairs | Arts, Culture and Tourism | (203) 946-8378 |
| Jefferson, Adriane | Cultural Affairs Director | Economic Development Administration | (203) 946-8378 |
