| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 601 | Kieran | Gaelic | Black. | M | |
| 602 | Kieron | Gaelic | Dusky; dark-haired. | M | |
| 603 | Kile | Gaelic | A place-name referring to the narrows; a wood or a church. | M | |
| 604 | Kiley | Gaelic | A place-name referring to the narrows; a wood or a church. | M | |
| 605 | Kinborough | Gaelic | Royal fortress. Commonly used in England until the 18th century, but is used rarely today. | F | |
| 606 | Kinnard | Gaelic | From the high hill. | M | |
| 607 | Kinnell | Gaelic | From the head of the cliff. | M | |
| 608 | Kye | Gaelic | A place-name referring to the narrows; a wood or a church. | M | |
| 609 | Kyla | Gaelic | Feminine of Kyle. | F | |
| 610 | Kylah | Gaelic | Feminine of Kyle. | F | |
| 611 | Kylan | Gaelic | A place-name referring to the narrows; a wood or a church. | M | |
| 612 | Kylar | Gaelic | A place-name referring to the narrows; a wood or a church. | M | |
| 613 | Kyle | Gaelic | A place-name referring to the narrows; a wood or a church. | M | |
| 614 | Kylea | Gaelic | Feminine of Kyle. | F | |
| 615 | Kylee | Gaelic | Feminine of Kyle. | F | |
| 616 | Kyleen | Gaelic | Feminine of Kyle. | F | |
| 617 | Kyleigh | Gaelic | Feminine of Kyle. | F | |
| 618 | Kylen | Gaelic | A place-name referring to the narrows; a wood or a church. | M | |
| 619 | Kyler | Gaelic | A place-name referring to the narrows; a wood or a church. | M | |
| 620 | Kyley | Gaelic | Feminine of Kyle. | F | |