| Registered Name | Owner / Club | Status |
|---|---|---|
| Mighty Zorro | Ruth Daunt Ballycanew | Approved |
| Mikey Joe | Josephine Britton Warrington | Approved |
| Mikeys Rock | Wenona Mc Bride Garryndruig | Approved |
| Milan (GER) | Christine Harte Lismore | Approved |
| Milchem What A Dream | Caitriona Cronin North Cork | Approved |
| Milestown Trend | Emma Meagher Mill Road | Approved |
| Milfords Lady | Jane Leighton Castle Leslie | Approved |
| Milky Bar | Yvonne Lambert Horetown | Approved |
| Mill Abbey Cover | Lea Cullen Rathfarnham | Approved |
| Mill House Black Magic | Rebecca Corr Oakleaf | Approved |
| Mill House Gracie | Rebecca Corr Oakleaf | Approved |
| Mill Races Diamond | Emma McKenna Derryledigan | Approved |
| Mill Seaman | Pauline Farrell Killcarrick | Approved |
| Millbank Charles | Michelle Remington Coole Lane | Approved |
| Millbank Shannon | Anthony Behan Coole Lane | Approved |