| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 341 | Kerr | Norse | From the marsh. | M | |
| 342 | Ketil | Norse | Son of Thori. | M | |
| 343 | Kiarr | Norse | From the marsh. | M | |
| 344 | Kiollsig | Norse | From the ship's island. | M | |
| 345 | Kirby | Norse | From the church farm/village. | M | |
| 346 | Kirk | Norse | Church. Dwells at the church. Famous Bearer: American actor Kirk Douglas. | M | |
| 347 | Kirkjabyr | Norse | From the church village. | M | |
| 348 | Kjarr | Norse | Son of Olaf the Peacock. | M | |
| 349 | Kjartan | Norse | Son of Olaf the Peacock. | M | |
| 350 | Kleng | Norse | Has claws. | M | |
| 351 | Knud | Norse | Kind. | M | |
| 352 | Knut | Norse | Knot. | M | |
| 353 | Knutr | Norse | Knot. | M | |
| 354 | Kodran | Norse | Father of Thjodgerd. | M | |
| 355 | Kol | Norse | Dark. | M | |
| 356 | Kolbein | Norse | Son of Sigmund of Vestfold. | M | |
| 357 | Kolbyr | Norse | From the dark settlement. | M | |
| 358 | Kolgrim | Norse | Son of Hrolf. | M | |
| 359 | Koll | Norse | Dark. | M | |
| 360 | Kolli | Norse | Dark. | M | |