| Name | Meaning | Gender | Origin |
|---|
| Helios | Sun | Unisex | Greek |
| Heloise | healthy; wide | Female | |
| Idalis | | Unisex | Hebrew |
| Iliana | from Ilium or Troy | Female | Greek |
| Indigo | A dark blue plant dye | Female | Greek |
| Io | pronounced: Ee-Oh | Female | Greek |
| Iris | rainbow, a play of colours | Female | |
| Jade | Jewel. Courageous and adoring.
| Female | Spanish |
| Jana | Feminine variation of John | Female | Czech |
| Jennet | God is gracious | Female | Old |
| Juniper | Juniper Tree | Female | English |
| Kachina | Sacred Dancer | Unisex | Native American |
| Kalea | bright | Unisex | |
| Kali | after the Indian goddess of death | Female | Sanskrit |
| Karnak | | Unisex | Hebrew |
| Katia | pure | Female | Russian |
| Kendra | Blend of Ken: (royal obligation:clear water) and Sandra: (protector of man) or Andrea: (manly or masculine).
| Female | English |
| Kimi | righteous | Female | Japanese |
| Kirstin | Variant of Kristen. Follower of Christ.
| Female | |
| Kisa | Russian for kitty | Unisex | |
| Kisha | Hebrew, cassia tree | Female | Spelling |
| Kronos | | Unisex | Hebrew |
| Krystal | Crystal, Ice | Unisex | Greek |
| Lena | Alluring, Temptress, Light | Female | Greek |
| Lilith | character in Cheers | Female | Assyrian |