| Name | Position | Party | Constituency |
|---|---|---|---|
| Pippa Hackett | Councillor | Unknown | Edenderry |
| Gerry Hagan | Councillor | Unknown | Longford |
| Michelle Hall | Councillor | Unknown | Drogheda Rural |
| Lorraine Hall | Councillor | Unknown | Dún Laoghaire |
| John Halligan | TD | Independent | Waterford |
| Melisa Halpin | Councillor | People Before Profit Alliance | Dún Laoghaire |
| Peter Hamilton | Councillor | Unknown | Maynooth |
| Seamus Hanafin | Councillor | Fianna Fáil | Thurles |
| Mary Hanafin | Councillor | Fianna Fáil | Blackrock |
| Breda Hanaphy | Councillor | Unknown | Blanchardstown - Mulhuddart |
| Pat Hand | Former Representative | Fine Gael | |
| Paul Hand | Former Representative | Independent | |
| Owen Hanley | Councillor | Unknown | Galway City East |
| Mary Hannah Hourigan | Councillor | Fine Gael | Cashel-Tipperary |
| Dominic Hannigan | Former Representative | Labour | |
| Joe Hannigan | Councillor | Independent | Nenagh |
| Blaise Hanningan | Former Representative | Independent | |
| Wayne Harding | Councillor | Fianna Fáil | Laytown-Bettystown |
| Marian Harkin | Former Representative | Independent | |
| Martin Harley | Councillor | Fine Gael | Stranorlar |
| Laura Harmon | Former Representative | Independent | |
| Noel Harrington | Former Representative | Fine Gael | |
| Simon Harris | TD | Fine Gael | Wicklow |
| Joe Harris | Councillor | Independent | Ballincollig-Carrigaline |
| Paddy Harte Jr | Former Representative | Fine Gael | |
| Seán Hartigan | Councillor | Unknown | Limerick City East |
| Natasha Harty | Former Representative | Green Party | |
| Michael Harty | TD | Independent | Clare |
| Declan Harvey | Councillor | Fianna Fáil | Tullamore |
| Seán Haughey | TD | Fianna Fáil | Dublin Bay North |