| Registered Name | Owner / Club | Status |
|---|---|---|
| Morgan Chester | Dolores Ruth Cill Dara | Approved |
| Morgiana Hero | Dylan Enright Mo Chara | Approved |
| Morgiana Midsummer | Hanna Begley Killcarrick | Approved |
| Morgiana Minstrel | Mandy McLeod Fingal | Approved |
| Morlabbey Henry | Cathy Cuffe Mosstown | Approved |
| Morning Clouds | Eamon Molloy Anvil | Approved |
| Morning Due | Helena Hurley South West | Approved |
| Morning Flyer | Liddy Nolan Ballycanew | Approved |
| Morris of Liskeran | Steven Carty Castle Leslie | Approved |
| Morris Silver Lady | Jennifer Gorman Mosstown | Approved |
| Mortlestowncastle Rio | Colleen Moffett Border Counties | Approved |
| Mos Maggie | Moira Kelly Corrib | Approved |
| Mosaic Storm | Alan Hynes Ballinasloe | Approved |
| Moscow Flyer (IRE) | Beverley Morgan Greenvalley | Approved |
| Moshillan Diamond | Grainne Whelan Dunamase | Approved |