| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 401 | Keanna | Irish | Variant of Kian. Ancient. | F | |
| 402 | Keara | Irish | The name of a saint. | F | |
| 403 | Keavy | Irish | Graceful. | F | |
| 404 | Keeley | Irish | Variant of Kelly: War. Lively. Aggressive. An Irish surname and modern first name. | F | |
| 405 | Keely | Irish | Beautiful. | F | |
| 406 | Keelyn | Irish | Lively; aggressive. Variant of Kelly. | F | |
| 407 | Keenat | Irish | Archaic. | F | |
| 408 | Keiana | Irish | Variant of Kian. Ancient. | F | |
| 409 | Keilah | Irish | Lively; aggressive. Variant of Kelly. | F | |
| 410 | Keira | Irish | Feminine of the Irish Gaelic Kieran. Dusky; dark-haired. | F | |
| 411 | Kelcie | Irish | Brave. | F | |
| 412 | Kelcy | Irish | Brave. | F | |
| 413 | Kelleigh | Irish | Lively; aggressive. | F | |
| 414 | Kelley | Irish | Lively; aggressive. | F | |
| 415 | Kelli | Irish | Lively; aggressive. | F | |
| 416 | Kellie | Irish | Variant of Kelly: War. Lively. Aggressive. An Irish surname and modern first name. | F | |
| 417 | Kellsey | Irish | Brave. | F | |
| 418 | Kelly | Irish | War. An Irish surname that has only been used as a first name (either gender) in the latter half of the 20th century. | F | |
| 419 | Kellyanne | Irish | Lively; aggressive. | F | |
| 420 | Kellye | Irish | Lively; aggressive. | F | |