| Registered Name | Owner / Club | Status |
|---|---|---|
| Whitetree Master | Jessica Harley Killossery | Approved |
| Whitetree Sky | Joanne Logue Hollybrook | Approved |
| Whitetree Socks | Orla Cassidy Killossery | Approved |
| Whitetree Wizard | Orla Cassidy Killossery | Approved |
| Whitewell Peekaboo | Rita Naughton Tinahely | Approved |
| Whitewell Tomboy | Marie O' Connor Nuenna Farm | Approved |
| Whitewood Rodge | Ann Marie Doyle Mosstown | Approved |
| Who's Illusion | Caroline O' Callaghan Warrington | Approved |
| Whole Lotta Rosie | Patricia Frost Ballinrobe | Approved |
| Why Not Mayo | Kate Solon Greenhills | Approved |
| Why Worry | Lauren Doyle Cheval | Approved |
| Whysocoy | Emma Boland Carrickmines | Approved |
| Wifonia | Marta Sheridan Rathangan | Approved |
| Wigor | Natasha Brotherton Kennedy Golden Grove | Approved |
| Wilcos Storm (IRE) | Amelia Paulsen Tynagh | Approved |