| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 1441 | Mundy | Irish | From Reamon. | M | |
| 1442 | Murchadh | Irish | Fighter of the sea. | M | |
| 1443 | Murel | Irish | Knows the sea. | F | |
| 1444 | Murphey | Irish | Seawarrior. | M | |
| 1445 | Murphy | Irish | Seawarrior. | M | |
| 1446 | Murray | Irish | Lord of the sea. | M | |
| 1447 | Murrough | Irish | Fighter of the sea. | M | |
| 1448 | Murry | Irish | Lord of the sea. | M | |
| 1449 | Murtaugh | Irish | Surname. | M | |
| 1450 | Myles | Irish | Servant. | M | |
| 1451 | Myma | Irish | Beloved. | F | |
| 1452 | Naal | Irish | Name of a saint. | M | |
| 1453 | Nainsi | Irish | Irish form of Nancy: graceful. | F | |
| 1454 | Nally | Irish | Poor. | M | |
| 1455 | Naomhan | Irish | Holy. | M | |
| 1456 | Neal | Irish | Variant of Neill: Champion. | M | |
| 1457 | Neala | Irish | Champion. | F | |
| 1458 | Neason | Irish | Name of a saint. | M | |
| 1459 | Neil | Irish | Variant of Neill: Champion. | M | |
| 1460 | Neilan | Irish | Champion Form of Neil. | M | |