| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 201 | Mathias | Scandinavian | Gift of God. | M | |
| 202 | Mikael | Scandinavian | Form of Michael 'Who is like God?'. | M | |
| 203 | Mikell | Scandinavian | Form of Michael 'Who is like God?'. | M | |
| 204 | Mikkel | Scandinavian | Form of Michael 'Who is like God?'. | M | |
| 205 | Neil | Scandinavian | Champion. | M | |
| 206 | Neilson | Scandinavian | Victorious; conquerer of the people. Variant of Nicholas. | M | |
| 207 | Nielsson | Scandinavian | Victorious; conquerer of the people. Variant of Nicholas. | M | |
| 208 | Niets | Scandinavian | Champion. | M | |
| 209 | Nigel | Scandinavian | Champion. From the Irish and Scottish Niall. | M | |
| 210 | Nijel | Scandinavian | Champion. From the Irish and Scottish Niall. | M | |
| 211 | Nils | Scandinavian | Champion. | M | |
| 212 | Nilsen | Scandinavian | Victorious; conquerer of the people. Variant of Nicholas. | M | |
| 213 | Njal | Scandinavian | Champion. From the Irish and Scottish Niall. | M | |
| 214 | Nygel | Scandinavian | Champion. From the Irish and Scottish Niall. | M | |
| 215 | Olaf | Scandinavian | Ancestral heritage. | M | |
| 216 | Oskar | Scandinavian | God's spear. | M | |
| 217 | Osman | Scandinavian | Godly protection. | M | |
| 218 | Osmin | Scandinavian | Godly protection. | M | |
| 219 | Osmond | Scandinavian | Godly protection. | M | |
| 220 | Osmund | Scandinavian | Godly protection. | M | |