| Name | Meaning | Gender | Origin |
|---|
| Hyacinth | after the character in the sitcom Keeping Up Appearances | Female | |
| Icarus | Follower | Male | Latin |
| Ice | Water frozen solid | Unisex | |
| Iceberg | | Unisex | Hebrew |
| Icon | | Unisex | Hebrew |
| Icy | | Unisex | Hebrew |
| Iditarod | | Unisex | Hebrew |
| India | Of India | Female | English |
| Indiana | Indiana, Usa, Meaning Land Of The Indians | Male | English |
| Indigo | A dark blue plant dye | Female | Greek |
| Infinity | Endless | Female | English |
| Ink | | Unisex | |
| Inki | | Unisex | Hebrew |
| Inky | | Unisex | Hebrew |
| Io | pronounced: Ee-Oh | Female | Greek |
| Iona | flower name, purple jewel | Female | Scottish |
| Irene | Peace
| Female | Greek |
| Iris | rainbow, a play of colours | Female | |
| Irish | People of Ireland. Also lucky - "The Luck of the Irish". | Unisex | |
| Isaac | laughing one | Male | Hebrew |
| Isabella | pledged to God | Female | Spanish |
| Isadora | gift of the moon | Female | Greek |
| Ishmael | outcast | Male | Hebrew |
| Ishtar | goddess | Unisex | |
| Isis | throne | Female | Egyptian |