| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 481 | Maola | Irish | Handmaiden. | F | |
| 482 | Maoli | Irish | Handmaiden. | F | |
| 483 | Mare | Irish | Bitter. | F | |
| 484 | Marella | Irish | Shining sea. Variant of Muriel. | F | |
| 485 | Margaret | Irish | Name of a saint. | F | |
| 486 | Marilla | Irish | Shining sea. Variant of Muriel. | F | |
| 487 | Maud | Irish | Strong battle maiden. | F | |
| 488 | Maude | Irish | Strong battle maiden. | F | |
| 489 | Maura | Irish | Bitter. | F | |
| 490 | Maureen | Irish | Bitter. | F | |
| 491 | Maurine | Irish | Bitter. | F | |
| 492 | Maurya | Irish | Bitter. | F | |
| 493 | Mave | Irish | Joy. | F | |
| 494 | Mayra | Irish | Variant of Maire, a Gaelic form of Mary: bitter. | F | |
| 495 | Meadhbh | Irish | Happiness or pearl. | F | |
| 496 | Mearr | Irish | Bitter. | F | |
| 497 | Meave | Irish | Joy. The name of an early queen of Connaught. | F | |
| 498 | Meeda | Irish | Thirsty. | F | |
| 499 | Megdn | Irish | Pearl. | F | |
| 500 | Meghan | Irish | Pearl. | F | |