| Ianthe | Greek | Violet Colored Flower |
| Ida | Teutonic | Happy |
| Idaline, Idalina | Teutonic | Noble |
| Idelle | Teutonic | Happy |
| Idola | Greek | A Vision |
| Idona | Teutonic | Industrious Worker |
| Ignatia | Latin | Fiery |
| Ilana | Hebrew | Tree |
| Ilse | German | Short for Elizabeth |
| Imogene | Latin | Imagine |
| Imani | ... | ... |
| India | ... | ... |
| Ines | Spanish | Form of Agnes |
| Ingrid | Old English | Meadow |
| Irene | Greek | Peace |
|
Iris |
Greek | The Rainbow |
| Irma | Latin | Noble |
| Isabel |
Spanish |
Consecrated to God |
| Isabella | ... | ... |
| Isadora | Latin | Gift of Isis |
| Ivana, Ivy, Iva | Hebrew | God's Gift |
| Ivory | Latin | White as Ivory |