| Iniko | - | West Indies Name | Iniyavan | - | Indian Name |
| Innes | - | Celtic Name | Innis | - | Gaelic Name |
| INNIS | - | Scottish Name | INNOKENTI | - | Russian Name |
| Inocencio | - | Philippines Name | Inoday | - | Hindu Name |
| Inokentije | - | Serbian Name | Insaf | - | Muslim Name |
| Insee | - | Thai Name | Inshon | - | West Indies Name |
| Insigne | - | Philippines Name | Intaj | - | Muslim Name |
| Intekhab | - | Indian Name | Inteus | - | American Name |
| Inthachai | - | Thai Name | Inthanon | - | Thai Name |
| Inthapat | - | Thai Name | Inthorn | - | Thai Name |
| Intikhab | - | Muslim Name | Intizar | - | Muslim Name |
| Inuk | - | Eskimo Name | Io Matua Kore | - | Polynesian Name |
| Ioachim | - | Hebrew Name | Ioachime | - | Russian Name |
| Ioakim | - | Russian Name | Ioan | - | Romanian Name |
| Ioan | - | Welsh Name | Ioan | - | United States Name |
| Ioane | - | Polynesian Name | IOANN | - | Russian Name |
| Ioannis | - | Greek Name | Ioka | - | Maori Name |
| Iokepa | - | Polynesian Name | Iolani | - | Polynesian Name |
| Iomar | - | Gaelic Name | IOSIF | - | Russian Name |
| Iosua | - | Polynesian Name | IPATI | - | Russian Name |
| Iphedeiah | - | Biblical Name | Ipik | - | Eskimo Name |
| IPPOLIT | - | Russian Name | Ipsit | - | Hindu Name |
| Iqaluq | - | Eskimo Name | Iqbal | - | Indian Name |
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