| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 601 | Nareen | Celtic | Contented. | F | |
| 602 | Nareena | Celtic | Contented. | F | |
| 603 | Nareene | Celtic | Contented. | F | |
| 604 | Neal | Celtic | Champion. | M | |
| 605 | Neala | Celtic | Ruler. | F | |
| 606 | Neale | Celtic | Champion. | M | |
| 607 | Nealie | Celtic | Ruler. | F | |
| 608 | Nealon | Celtic | Champion. | M | |
| 609 | Neese | Celtic | Choice. | M | |
| 610 | Neil | Celtic | Champion. | M | |
| 611 | Neill | Celtic | Champion. | M | |
| 612 | Nell | Celtic | Champion. | M | |
| 613 | Nels | Celtic | Chief. | M | |
| 614 | Nelson | Celtic | Son of Neil. | M | |
| 615 | Nemausus | Celtic | Mythical god of Nimes. | M | |
| 616 | Newlin | Celtic | From the new spring. | M | |
| 617 | Newlyn | Celtic | From the new spring. | M | |
| 618 | Niall | Celtic | Champion. | M | |
| 619 | Niallan | Celtic | Champion. | M | |
| 620 | Niece | Celtic | Choice. | M | |