| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 301 | Nigel | Scandinavian | Champion. From the Irish and Scottish Niall. | M | |
| 302 | Nijel | Scandinavian | Champion. From the Irish and Scottish Niall. | M | |
| 303 | Nils | Scandinavian | Champion. | M | |
| 304 | Nilsen | Scandinavian | Victorious; conquerer of the people. Variant of Nicholas. | M | |
| 305 | Nissa | Scandinavian | Friendly elf. | F | |
| 306 | Nisse | Scandinavian | Friendly elf. | F | |
| 307 | Njal | Scandinavian | Champion. From the Irish and Scottish Niall. | M | |
| 308 | Norell | Scandinavian | From the north. | F | |
| 309 | Nygel | Scandinavian | Champion. From the Irish and Scottish Niall. | M | |
| 310 | Nyssa | Scandinavian | Friendly elf. | F | |
| 311 | Nysse | Scandinavian | Friendly elf. | F | |
| 312 | Olaf | Scandinavian | Ancestral heritage. | M | |
| 313 | Olga | Scandinavian | Blessed. | F | |
| 314 | Oskar | Scandinavian | God's spear. | M | |
| 315 | Osman | Scandinavian | Godly protection. | M | |
| 316 | Osmin | Scandinavian | Godly protection. | M | |
| 317 | Osmond | Scandinavian | Godly protection. | M | |
| 318 | Osmund | Scandinavian | Godly protection. | M | |
| 319 | Oswin | Scandinavian | God's friend. | M | |
| 320 | Paavo | Scandinavian | Little. | M | |