| Girls Names Only | Boy Names Only | Show All Names |
| Name | Meaning | Origin | Gender |
| Iaap | unknown | Boy | |
| Iago | supplanter | Welsh, Spanish | Boy |
| Iain | God's gracious gift | Gaelic | Boy |
| Ian | Form of John | Scottish | Boy |
| Ibeamaka | the agnates are splendid | African | Boy |
| Ibrahim | Turkish | Boy | |
| Ichabod | Glory has Departed | Hebrew | Boy |
| Ignacio | one who is lively | Latin | Boy |
| Ignatius, Ignace | Fiery | Latin | Boy |
| Igor | hero | Norse | Boy |
| Ilhan | Turkish | Boy | |
| Ilias | Jehovah is my God | Latin | Boy |
| Imre | great king | German | Boy |
| Ince | innocent | Latin | Boy |
| Indra | God of rain and thunder | Hindu | Boy |
| Ingmar | famous son | Scandinavian | Boy |
| Ingo | Boy | ||
| Ingolf | Boy | ||
| Ingram | ing's raven | Teutonic | Boy |
| Ira | watchful, descendant | Hindu | Both |
| Iravan | son of Arjuna/Uloopi | Hindu | Boy |
| Irvin | lover of the sea | Anglo-Saxon | Boy |
| Irvin, Irving | Handsome | Scottish | Boy |
| Irving | handsome, fair | Celtic | Boy |
| Isaac | laughing one | Hebrew | Boy |
| Isaiah | salvation of the Lord | Hebrew | Boy |
| Isha | one who protects | Hindu | Boy |
| Ishver | Hindu | Boy | |
| Isidro | Spanish | Boy | |
| Israel | prince of God, may God reign | Hebrew | Boy |
| Itzak | laughter | Hebrew | Boy |
| Itziamar | Boy | ||
| Ivan | Form of John | Russian | Boy |
| Ivar | archer, a norse God | Norwegian | Boy |
| Iver, Ivar | Archer | Scandinavian | Boy |
| Ives | Little Archer | Old English | Boy |