| Name | M/F | Meaning |
|---|---|---|
| Ióéil | ![]() |
Meaning : Used in : Celtic |
| Iain | ![]() |
Meaning : God's Gracious Gift. Used in : Australian, Hebrew, Celtic, Scottish |
| Iúd | ![]() |
Meaning : In irish meaning is : Prince Used in : Celtic |
| Iúil | ![]() |
Meaning : In irish meaning is : youthful, Vivacious Used in : Celtic |
| Iarbonel | ![]() |
Meaning : In irish meaning is : Descendant of Judah Used in : Celtic, Irish |
| Iarfhlaith | ![]() |
Meaning : Used in : Irish, Celtic |
| Iarlaith | ![]() |
Meaning : In irish meaning is : Lord of the west, Royalty Used in : Celtic, Irish |
| Iarlaithe | ![]() |
Meaning : Used in : Celtic |
| Ibhor | ![]() |
Meaning : Used in : Celtic |
| Ibor | ![]() |
Meaning : In irish meaning is : Yew tree Used in : Celtic, Irish |
| Idanach | ![]() |
Meaning : Used in : Celtic |
| Iduthin | ![]() |
Meaning : Used in : Celtic |
| Iehmarc | ![]() |
Meaning : Used in : Celtic |
| Igalram | ![]() |
Meaning : Used in : Celtic |
| Ighneachán | ![]() |
Meaning : In irish meaning is : Strong man Used in : Celtic |
| Ilar | ![]() |
Meaning : Used in : Celtic |
| Ilaunos | ![]() |
Meaning : Used in : Celtic |
| Ilbrec | ![]() |
Meaning : Used in : Celtic |
| Ilbrech | ![]() |
Meaning : Used in : Celtic |
| Ildathach | ![]() |
Meaning : Used in : Celtic |
| Imchath | ![]() |
Meaning : Used in : Celtic |
| Imhar | ![]() |
Meaning : Used in : Celtic |
| Imidd | ![]() |
Meaning : Used in : Celtic |
| Incha | ![]() |
Meaning : In irish meaning is : Allah Used in : Celtic, Irish |
| Indech | ![]() |
Meaning : Used in : Celtic |
| Indract | ![]() |
Meaning : In irish meaning is : Saint name Used in : Celtic, Irish |
| Indrechtach | ![]() |
Meaning : In irish meaning is : Attacker Used in : Celtic, Irish |
| Indutioamrus | ![]() |
Meaning : Used in : Celtic |
| Indutius | ![]() |
Meaning : Used in : Celtic |
| Ingcel | ![]() |
Meaning : Used in : Celtic |
| Ingnathach | ![]() |
Meaning : In irish meaning is : Druid of the Fir Bolg Used in : Celtic, Irish |
| Ingol | ![]() |
Meaning : Used in : Celtic |
| Innel | ![]() |
Meaning : Used in : Celtic |
| Inness | ![]() |
Meaning : From The Island. Used in : Celtic, Gaelic, Scottish |
| Innsa | ![]() |
Meaning : Used in : Celtic |
| Invomandus | ![]() |
Meaning : Used in : Celtic |
| Iobhar | ![]() |
Meaning : In irish meaning is : Yew Used in : Celtic, Irish |
| Iogenan | ![]() |
Meaning : Used in : Celtic |
| Iollen | ![]() |
Meaning : Used in : Celtic |
| Iolunn | ![]() |
Meaning : Used in : Celtic |
| Ion | ![]() |
Meaning : Moon Manm. Used in : Australian, Celtic, French, Greek, Irish, Romanian |
| Ior | ![]() |
Meaning : In irish meaning is : Lord Used in : Celtic, Irish |
| Irdun | ![]() |
Meaning : Used in : Celtic |
| Irial | ![]() |
Meaning : In irish meaning is : Elf Used in : Celtic, Irish |
| Irimia | ![]() |
Meaning : Used in : Irish, Celtic |
| Irven | ![]() |
Meaning : White. Used in : American, Australian, British, Celtic, English |
| Irvin | ![]() |
Meaning : White. Used in : American, Australian, British, Celtic, English, French, Gaelic, German, Irish, Scottish |
| Irving | ![]() |
Meaning : Handsome And Fair. Used in : American, Australian, Chinese, British, Celtic, Danish, English, French, German, Irish, Scottish, Australian |
| Irvyn | ![]() |
Meaning : White. Used in : American, British, Celtic, English |
| Istolatius | ![]() |
Meaning : Used in : Celtic |
| Istoreth | ![]() |
Meaning : Used in : Celtic |
| Ith | ![]() |
Meaning : Used in : Celtic |
| Iubdan | ![]() |
Meaning : Used in : Celtic |
| Iuchar | ![]() |
Meaning : Used in : Celtic |
| Iucharba | ![]() |
Meaning : In irish meaning is : A Brian mac Tuirenn, who killed Lugh's father Cian. Used in : Celtic, Irish |
| Iunsa | ![]() |
Meaning : Used in : Celtic |
| Ivomagus | ![]() |
Meaning : Used in : British, Celtic, English |
| Ivonercus | ![]() |
Meaning : Used in : Celtic |