| Registered Name | Owner / Club | Status |
|---|---|---|
| Hooch | Clodagh Doggett Benbulben | Approved |
| Hope (HPA) | Kate Harvey Brooke Lodge | Approved |
| Hopesareraised | Jenny Costello Cill Dara | Approved |
| Hopetoun George | Una Holohan Cill Dara | Approved |
| Hopetoun Henry | Una Holohan Cill Dara | Approved |
| Hoppin Apache | Siobhan Garret Cooney Burren | Approved |
| Horatio Caine | Cara Gilheany Drumcoura | Approved |
| Horetown Boy | David Byrne Carne | Approved |
| Horse Heaven Merrylegs | Laura Corrigan Lakelands | Approved |
| Horseplay Clover Star | Jenny Doran Ashbrook | Approved |
| Horseplay Diamond Matrix | Lianna Sabo Ballycanew | Approved |
| Horseplay Jamboree | Jenny Doran Ashbrook | Approved |
| Horseplay Yogi Bear | Jenny Doran Ashbrook | Approved |
| Horseware Bowman | Nicki Walker Clonough | Approved |
| Horus | Margo Barrow Stracomer | Approved |