| Registered Name | Owner / Club | Status |
|---|---|---|
| Attila | Derry Walker Rathangan | Approved |
| Attractive Proposition | Michael Phillips Mill Road | Approved |
| Atty Aldto Z | Margaret McCumiskey Winterdown | Approved |
| Attyrory Jacky | Sheena Kinsella Cheval | Approved |
| Attyrory Show Down | Lorna Hyde Knocknamana Country | Approved |
| Auburn Arrow | Gabriele Ehrke Moyglare | Approved |
| Auburn Covers | Ian Tighe Brooke Lodge | Approved |
| Auburn Windy Fallon | Annemieke Plass South Roscommon | Approved |
| Audacious | Eileen Doran Kilrainy | Approved |
| Augha Amber | Paul O' Callaghan Warrington | Approved |
| Aughadown Ace | Mary Mitchell Tonabrockey | Approved |
| Aughalion Girl | Paul O' Kane Inishowen | Approved |
| Aughanahown Boy | Susan Kennedy Castle Hill | Approved |
| Aughanahown Villa | Emer Lyons Mosstown | Approved |
| Augharea East Biscuit | Kerri Goodison Ross House | Approved |