| Name | Position | Party | Constituency |
|---|---|---|---|
| Pippa Hackett | Senator | Green Party | Agricultural Panel |
| Mark Hackett | Councillor | Green Party | Edenderry |
| Gerry Hagan | Councillor | Unknown | Longford |
| Michelle Hall | Councillor | Unknown | Drogheda Rural |
| Lorraine Hall | Councillor | Fine Gael | Dún Laoghaire |
| Melisa Halpin | Councillor | People Before Profit | Dún Laoghaire |
| Peter Hamilton | Councillor | Green Party | Maynooth |
| Seamus Hanafin | Councillor | Fianna Fáil | Thurles |
| Mary Hanafin | Councillor | Fianna Fáil | Blackrock |
| Breda Hanaphy | Councillor | Unknown | Blanchardstown - Mulhuddart |
| Owen Hanley | Councillor | Social Democrats | Galway City East |
| Mary Hannah Hourigan | Councillor | Fine Gael | Cashel-Tipperary |
| Joe Hannigan | Councillor | Independent | Nenagh |
| Wayne Harding | Councillor | Fianna Fáil | Laytown-Bettystown |
| Marian Harkin | TD | Independent | Sligo-Leitrim |
| Martin Harley | Councillor | Fine Gael | Lifford-Stranorlar |
| Simon Harris | TD | Fine Gael | Wicklow |