| Registered Name | Owner / Club | Status |
|---|---|---|
| Jackson River | Sarah Ridgway Hollybrook | Approved |
| Jacksons Diamond Girl | Anthony Coyne Mosstown | Approved |
| Jacksons Revenge | Aisling Foster Meath | Approved |
| Jacksons Rock | SINEAD ANGLIN Mo Chara | Approved |
| Jacobs Mate | Barbara Stallard Treegrove | Approved |
| Jacomars Fine Diamond | Charlotte Fleming Round Tower | Approved |
| Jade FS | Jess Stallard Treegrove | Approved |
| Jadis | CAROL CASEY Killcarrick | Approved |
| Jadore Ashkari | Stefan Cullinan Carne | Approved |
| Jaeger Bomb | Jacqueline Broderick Springmount | Approved |
| JAG Dilemma | Julieann Gaffney Winterdown | Approved |
| JAG Rockstar | Julieann Gaffney Winterdown | Approved |
| JAG Tyson | Jennifer Burke Benbulben | Approved |
| Jager | MEGEN FLEMING Phoenix | Approved |
| Jaggermeister | Maria Sheikh Calliaghstown | Approved |