| Registered Name | Owner / Club | Status |
|---|---|---|
| Selto | Sarah Maxwell Cheval | Approved |
| Send Me On | Adrian Hickey Earl's Well | Approved |
| Señor Sharp | Fiona Monne Dunleavy Corrib | Approved |
| Sensations Bay Rum | Marian Tennyson Ard Lu | Approved |
| September Song | Neva McNamara Mullingar | Approved |
| Ser Kai | Niamh O' Huid Dunbyrne | Approved |
| Sereanto | Ann Toohey Friary | Approved |
| Sergeant Bilko | Mark Foley Benbulben | Approved |
| Seskinrea Lucky's Rebel | Bridget Hearne Barrow Valley | Approved |
| Seskins Caldy | Kevin Mc Donagh Enniskerry | Approved |
| Seskinskoll Billy | Sarah Cashin Ashbrook | Approved |
| Setanta Express | Laura Murphy Finn Border Counties | Approved |
| Sewn Up | Tom Butler Nuenna Farm | Approved |
| Sexton Prince (IRE) | Maura Walsh Tara Hill | Approved |
| SFH Supernova | Cait Hennessy Newpark | Approved |