| Izreal | - | West Indies Name | Izsak | - | Hungarian Name |
| Izusa | - | American Name | Izyan | - | Muslim Name |
| Izz | - | Muslim Name | IZZALDIN | - | Muslim Name |
| Izzat | - | Muslim Name | IZZEDDIN | - | Muslim Name |
| Izzeddin | - | Turkish Name | Izzet | - | Turkish Name |
| Izzy | - | Yiddish Name | Ištvan | - | Serbian Name |
| Jaafar | - | African Name | Jaakan | - | Biblical Name |
| Jaalam | - | Biblical Name | Jaaluk | - | Eskimo Name |
| Jaasau | - | Biblical Name | Jaasiel | - | Biblical Name |
| Jaazaniah | - | Biblical Name | Jaaziah, Jaaziel | - | Biblical Name |
| Jaaziel | - | Biblical Name | Jabal | - | Biblical Name |
| Jabari | - | Egyptian Name | JABBAR | - | Muslim Name |
| Jabbar | - | Algerian Name | Jabbok | - | Biblical Name |
| Jabesh | - | Biblical Name | Jabez | - | Biblical Name |
| Jabin | - | Hebrew Name | Jabin, Jabneh | - | Biblical Name |
| JABIR | - | Muslim Name | Jabir | - | Algerian Name |
| Jabneel | - | Biblical Name | JABR | - | Muslim Name |
| JABRIL | - | Muslim Name | Jabulani | - | African Name |
| Jace | - | Hebrew Name | Jacek | - | Polish Name |
| Jach | - | Hebrew Name | Jachan | - | Biblical Name |
| Jachin | - | Biblical Name | Jachin | - | Hebrew Name |
| Jacinto | - | Spanish Name | Jack | - | Hebrew Name |
| Jackie | - | Scottish Name | Jacksen | - | English Name |
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