| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 1261 | Kilian | Irish | Small; fierce. | M | |
| 1262 | Killdaire | Irish | From county Kildare. | M | |
| 1263 | Killian | Irish | Strife or battle Small; fierce. | M | |
| 1264 | Kinnat | Irish | Archaic. | F | |
| 1265 | Kinsella | Irish | Surname. | M | |
| 1266 | Kiona | Irish | Variant of Kian. Ancient. | F | |
| 1267 | Kionah | Irish | Variant of Kian. Ancient. | F | |
| 1268 | Kioni | Irish | Variant of Kian. Ancient. | F | |
| 1269 | Kionna | Irish | Variant of Kian. Ancient. | F | |
| 1270 | Kirby | Irish | Surname. | M | |
| 1271 | Kit | Irish | Diminutive of Katherine: Pure. Clear. From the Gaelic form Caitlin. | F | |
| 1272 | Kitty | Irish | Diminutive of Katherine: Pure. Clear. From the Gaelic form Caitlin. | F | |
| 1273 | Korey | Irish | Spear bearer. Also a variant of Corey: From the hollow. | M | |
| 1274 | Kye | Irish | A place-name referring to the narrows; a wood or a church. | M | |
| 1275 | Kylan | Irish | A place-name referring to the narrows; a wood or a church. | M | |
| 1276 | Kylar | Irish | A place-name referring to the narrows; a wood or a church. | M | |
| 1277 | Kyle | Irish | A place-name referring to the narrows; a wood or a church. | M | |
| 1278 | Kylen | Irish | A place-name referring to the narrows; a wood or a church. | M | |
| 1279 | Kyler | Irish | A place-name referring to the narrows; a wood or a church. | M | |
| 1280 | Kyran | Irish | Dark. | M | |