| Registered Name | Owner / Club | Status |
|---|---|---|
| Definite Back (IRE) | Gerry Whyte Mosstown | Approved |
| Definite Destiny (IRE) | Thomas McGrane Ard Lu | Approved |
| Definitive Answer (IRE) | Stephanie O'Connell Border Counties | Approved |
| Defying Gravity | Orla Owens Mosstown | Approved |
| Deise Girl | Barbara Gleeson Waterford | Approved |
| Deja Vu Diamond Express | Alessandra Giani Waterford | Approved |
| Dejay | Deirdre Fitzgerald Abbeylands | Approved |
| Delamain Cruise | Paula Campbell Barnacarroll | Approved |
| Delaneys Max | Declan Delaney Oakleaf | Approved |
| Delgany Exit (IRE) | Natalie Smyth Killcarrick | Approved |
| Delialah | Rachel Alford Rathfarnham | Approved |
| Delightful Choice | Seana Devlin Lismore | Approved |
| Delightful Cookie | Katie Delahunty Waterford | Approved |
| Delilah KH | Caroline McKerring Sarsfield | Approved |
| Dell View Girl | Rachel Delahunty Three Counties | Approved |