| Name | Position | Party | Constituency |
|---|---|---|---|
| Sinead Sheppard | Councillor | Fine Gael | Cobh |
| Joe Sheridan | Councillor | Fianna Fáil | Tuam |
| Donna Sheridan | Councillor | Unknown | Castlebar |
| Seamus Sheridan | Former Representative | Green Party | |
| John Sheridan | Councillor | Unknown | Ardee |
| Seán Sherlock | TD | Labour | Cork East |
| Marie Sherlock | Senator | Labour | Labour Panel |
| Mary Shields | Councillor | Fianna Fáil | Cork City South-West |
| Dessie Shiels | Former Representative | Independent | |
| Frank Shinnick | Former Representative | Irish Freedom Party | |
| Roisin Shortall | TD | Social Democrats | Dublin North-West |
| Maurice Shortall | Former Representative | Labour | |
| Stephen Sinclair | Former Representative | Direct Democracy Ireland - National Citizens Movement | |
| Liam Sinclair | Councillor | Green Party | Tallaght Central |
| Justin Sinnott | Former Representative | Independent | |
| Marese Skehan | Former Representative | Independent | |
| Bil Slattery | Former Representative | Fine Gael | |
| Catherine Slattery | Councillor | Fianna Fáil | Limerick City East |
| Terence Slowey | Former Representative | Fine Gael | |
| Dónal Smith | Councillor | Fianna Fáil | Stillorgan |
| Amanda Smith | Councillor | Independent | Ashbourne |
| Fergal Smith | Former Representative | Green Party | |
| Emmett Smith | Former Representative | People Before Profit | |
| Trevor Smith | Councillor | Fine Gael | Ballyjamesduff |
| Trevor Smith | Former Representative | Unknown | |
| Brendan Smith | TD | Fianna Fáil | Cavan-Monaghan |
| Michael Smith | Councillor | Fianna Fáil | Roscrea-Templemore |
| Alistair Smith | Former Representative | United People | |
| Paddy Smith | Former Representative | Fine Gael | |
| Val Smith | Councillor | Fine Gael | Bailieborough-Cootehill |