| Name | Meaning | Gender | Origin |
|---|
| Hoppy | | Unisex | Hebrew |
| Hops | | Unisex | Hebrew |
| Howler | | Unisex | Hebrew |
| Hunny | | Unisex | Hebrew |
| Hyacinth | after the character in the sitcom Keeping Up Appearances | Female | |
| Hyperion | | Unisex | Hebrew |
| Igloo | Dome shaped Eskimo house made of blocks of snow. | Unisex | |
| Image | | Unisex | Hebrew |
| Iris | rainbow, a play of colours | Female | |
| Isabella | pledged to God | Female | Spanish |
| Isis | throne | Female | Egyptian |
| Ivy | ivy plant, a wine | Female | Plant |
| Jade | Jewel. Courageous and adoring.
| Female | Spanish |
| Jafar | little stream | Unisex | |
| Jane | gracious, merciful, God is gracious | Female | English |
| Jasmine | Flower
| Female | Persian |
| Java | Brewed coffee | Female | Anglicization |
| Jemma | Italian, precious stone | Female | Spelling |
| Jenny | Diminutive of Jane and Jennifer.
| Female | English |
| Jenny | Diminutive of Jane and Jennifer.
| Female | English |
| Jezebel | follower of idols | Female | Hebrew |
| Jiggs | | Unisex | Hebrew |
| Jimbo | Supplanter, Representative | Unisex | Hebrew |
| Jiminy | | Unisex | Hebrew |
| Jinxy | | Female | Hebrew |