| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 361 | Hogan | Irish | Youth Surname. | ||
| 362 | Honor | Irish | Honor. | F | |
| 363 | Honora | Irish | Honor. | F | |
| 364 | Honoria | Irish | Honor. | F | |
| 365 | Ibernia | Irish | From Ireland. | F | |
| 366 | Ida | Irish | Thirsty. | F | |
| 367 | Ide | Irish | Thirsty. | F | |
| 368 | Ierne | Irish | From Ireland. | F | |
| 369 | Ilane | Irish | Island. | F | |
| 370 | Imogen | Irish | Daughter. Last born. | F | |
| 371 | Inis | Irish | From Ennis. | F | |
| 372 | Isibeal | Irish | Irish form of Isabel: consecrated to God. | F | |
| 373 | Isleen | Irish | Vision. | F | |
| 374 | Islene | Irish | Vision. | F | |
| 375 | Ita | Irish | Thirst. Thirsty. | F | |
| 376 | Izett | Irish | Irish form of Isolda. | F | |
| 377 | Jana | Irish | Feminine form of John: God is gracious. | F | |
| 378 | Juno | Irish | Variant of Una: Lamb; together. | F | |
| 379 | Kady | Irish | Variant of Cady meaning 'a rhythmic flow of sounds. | F | |
| 380 | Kaitlan | Irish | Modern phonetic form of the Irish name Caitlin from Catherine meaning pure. | F | |