| Name | Origins | Meaning | |
| | | | |
| Istu | Native American | Isto meaning it's : sugar. | |
| Istvan | Hungarian | Istvan it's the hungarian form of Stephan. | |
| Istvin | Greek | Istvin Greek meaning it's : strong. | |
| Itachi | Japanese | It means weasel. | |
| Itai | Hebrew | Itai meaning it's : friendly. | |
| Itamar | Hebrew | Itamar meaning it's : tree from the island. | |
| Itche | Hebrew | Itche Hebrew meaning it's : happiness. | |
| Itimad | Arabic | Itimad Arabic meaning it's : gentle and kind. | |
| Ittai | Hebrew | It means friendly. | |
| Ittamar | Hebrew | It means tree from the island | |
| Ituha | Native American | Ituha meaning it's : oak. | |
| Itzaak | Hebrew | Itzaak meaning it's laugh. | |
| Itzak | Hebrew | It meaning it's laughter. | |
| Itziamar | | | |
| Itzig | Hebrew | Itzig meaning it's : to laugh. | |
| Itzik | Hebrew | The meaning it's laughter. | |
| Iugini | Greek | Iugini Greek meaning it's : the new born. | |
| Iukekini | Latin | It means fair. | |
| Iukini | Greek | Iukini meaning it's : noble. | |
| Iulio | Latin | It means youthful. | |
| Ivak | Indian | Ivak Indian meaning it's : proud. | |
| Ivan | | Ivan it's a form of John. | |
| Ivar | Old Norse | Ivar meaning it's archer. | |
| Ives | Old English | Ives meaning it's archer. | |
| Ivo | German | Ivo means battle. | |
| Ivor | Old Norse | Ivor meaning it's battle. | |
| Ivrit | Hebrew | Ivrit it's the Hebrew language. | |
| Iwko | Hebrew | Iwko Hebrew meaning it's : God is gracious. | |
| Iyad | Arabic | Iyad meaning it's : powerful. | |
| Iyar | Hebrew | It means bright. | |
| Iye | Native American | Iye meaning it's : smoke. | |
