| Registered Name | Owner / Club | Status |
|---|---|---|
| I Love You Mary Ann | Nuala O'Neill Killcarrick | Approved |
| I Rave I Dance (IRE) | Tamara Gizzi Glenway | Approved |
| I'll Be Lucky | Katy Scott Kerry | Approved |
| I'm Finished Hunting | Karina Mescal Castle Carraig | Approved |
| I've Got Wings | Carl Wiseman Killcarrick | Approved |
| Ibble Dibble | Joanna Younghusband Friary | Approved |
| Ibelleam Des Dauges | Sandra Collins Thomastown and District | Approved |
| Ibrahim | Kate Graham Inishowen | Approved |
| Icarus Argenteus | Ruth Dalton Coole Lane | Approved |
| Ice Cube | Mary Flynn Tara Hill | Approved |
| Ice Q Van De Kat | Patrick Dennehy Clonshire | Approved |
| Iceford Cool As Ice | Lizzy Naughton Round Tower | Approved |
| Iceford Cruise | Melissa Monaghan Benbulben | Approved |
| Iceford Diamond | Regina Hoctor Slieve Bloom | Approved |
| Icky Thump | Ciara Clancy Coolbell | Approved |