| Registered Name | Owner / Club | Status |
|---|---|---|
| Designer Genes | Joy Ffrench Carne | Approved |
| Designer Swatch | Emma Dillon Killcarrick | Approved |
| Desired Effect | Arlene Doris Lakelands | Approved |
| Desperados Diamond | Anna Szczepanska Cheval | Approved |
| Dessi The Wonder Horse | Patricia Buckley Calliaghstown | Approved |
| Destination Unknown | Ruth Daunt Ballycanew | Approved |
| Destiny's Dream | Jenny O' Brien Kilronan | Approved |
| Deutschland (USA) | Abigail Armstrong Copperfield | Approved |
| Deviant Z | Louise Fitzgerald Duhallow | Approved |
| Dexters Pride | Lorne Deegan Ballycanew | Approved |
| DFE Bo Lightening | Shannon O'Mahony Clonshire | Approved |
| DFE Lucky Clover | Shannon O'Mahony Clonshire | Approved |
| DG Arkall | Aisling Harrison Enniskerry | Approved |
| DHF Alliance | Jess Stallard Treegrove | Approved |
| DHF Chillout George | Rachel O'Connell Thomastown and District | Approved |