J-K
The abbreviations in the "category" column are: A=anglicization T= traditional name Tr= Irish translation of a non-Irish name M= modern creation P= place name L= last name, S= saint name.| Name (gender) | Category | Pronunciation | Other Forms | Origin/Meaning |
|---|---|---|---|---|
| Jarlath (m) | A,S | JAR lath | Iarfhlaith | tributary lord? western kingdom? |
| Jarmy (m) | A | JAR mee | Diarmaid, Dermot | without injunction or envy? freeman? charioteer? |
| Juverna (f) | M | joo VERN a, yoo VERN a | - | a Latin name for Ireland |
| Kathleen (f) | A | kath LEEN | Caitlín | from Greek, traditionally associated with word pure |
| Kavanagh | L | KAV a na | Caomhanach | descendant or follower of St. Caomhan |
| Kean (m) | A | KEEN, KANE | Cian | ancient or enduring |
| Kearney | L | KUR nee | Ó Catharnaigh/Ó cearnaigh | fox/victorious |
| Keegan | L | KEE gin | Mac Aodhagáin | fire |
| Keelin (f) | A,S | KEE lin | Caoilfhionn | fair and slender |
| Keely (f) | M | KEE lee | - | modern coinage based on names like Kelly, Keelin, Kiely etc. |
| Keenan | L,A,S | KEE nin | Cianán, Kenan | ? |
| Kelly | L | KEL lee | Mac Ceallach | bright-headed |
| Kennan | L | KEN nin | Mac Fhionnan | fair one |
| Kennedy | L | KEN nid ee | Ó Cinnede, Canady | ugly head |
| Kenneth (m) | A | KEN eth | Cináed | ?? |
| Kerrin | L | KER in | Ó Ceirin | ? |
| Kerry | P | KEH ree | an Ciarrai | descendants of Ciar (dark) |
| Kevin (m) | A,S | KEV in | Caoimhín | beautiful child |
| Kiera (f) | A, M | KEER a | Ciar, Ciara | black |
| Kieran (m) | A,S | KEER an | Ciarán | black |
| Kiley | L | KY lee | Ó Cadhla, Kiely | graceful |
| Kilkelly | P | kil KEL lee | cill ceallach | Ceallach's church |
| Kilkenny | P | kil KEN nee | Cill Ciannach | St. Ciannach's church |
| Killashandra | P | kill a SHAN dra | - | church of the old fort--town in Co. Cavan. Used for a character in an Anne McCafferey novel. |
| Killeen | P | kul EEN | coillín | little woods |
| Killian (m) | A,S | KIL ee an | Cillian, Cillén | church |
| Kilrea | P | kil RAY | cill ruadh | russet church |
| Kinsella | L | KIN sil a | Cinnsealach | ? |
| Kirby | L | KIR bee | Ó Ciarmhaic | dark son |
| Kyne (m) | A | KYNE | Cadhan | wild goose |