| Registered Name | Owner / Club | Status |
|---|---|---|
| Mosstowns General | Claire Mulleady Mosstown | Approved |
| Mossy Green (IRE) | Marie Claire Bellew Kilrainy | Approved |
| Most Gifted (IRE) | Barbara Dohr Warrington | Approved |
| Mostra D'Argento | Amanda Florence Sheridan Headfort | Approved |
| Mother's Pride | Loraine Fegan Bel Air | Approved |
| Motnor (IRE) | Clare Woulfe Clonshire | Approved |
| Motor On | AILEEN BYRNE Thomastown and District | Approved |
| Motown | Laura Hagger West Cork | Approved |
| Mougins | Jenny Collier Dunamase | Approved |
| Mount Belle Darkey | Nola Cadden Headfort | Approved |
| Mount Brown Silver | Declan Cullagh Friary | Approved |
| Mount Carmel Jodie | Hannah Webster Killossery | Approved |
| Mount Falcon Beau | Eilish Funge Clonough | Approved |
| Mount Frisco Carnival | Valerie Phelan Anvil | Approved |
| Mount Frisco Lad | Valerie Phelan Anvil | Approved |