| Registered Name | Owner / Club | Status |
|---|---|---|
| The Little Brud (IRE) | John Wiseman Oakleaf | Approved |
| The Little Farrier | Sinead Codd Thomastown and District | Approved |
| The Lodger | Leanne Platt Westport | Approved |
| The Maggie Lady | Anne Marie McMahon Mullaghmore | Approved |
| The Mayo Maverick | Adrian Corcoran Barnacarroll | Approved |
| The Meelick Native | Caroline Ward Barnacarroll | Approved |
| The Meelick Prince | Philip Byrne Barnacarroll | Approved |
| The Mighty Red | Tomas Ryan Mill Road | Approved |
| The Minstral Boy | Patricia Weldon Tara Hill | Approved |
| The Minstrel Man | Janet Furlong Drynam | Approved |
| The Minx | Harriet Aveling Foxborough | Approved |
| The Monkey Man | STEPHEN JOHNSON Clonshire | Approved |
| The Moonshiner | Geraldine McMahon Burren | Approved |
| The Mouse Doctor (IRE) | Lorna McKenna Mullaghmore | Approved |
| The Moydrum Collie | Colette Gaffey Bridge | Approved |