| Name | Meaning | Gender | Origin |
|---|
| Helios | Sun | Unisex | Greek |
| Holly | Holy
| Female | English |
| Hon | | Unisex | Hebrew |
| Honey | Term of endearment. Sweet syrup produced by bees | Female | Word |
| Honey Bear | | Unisex | Hebrew |
| Honey Bee | | Unisex | Hebrew |
| Honeybunny | | Unisex | Hebrew |
| Hot Stuff | | Unisex | Hebrew |
| Hugs | To hold closely in an affectionate embrace. | Unisex | |
| Hulk | | Unisex | Hebrew |
| Hunny | | Unisex | Hebrew |
| Hyacinth | after the character in the sitcom Keeping Up Appearances | Female | |
| Iduna | | Unisex | Hebrew |
| Imogen | beloved child | Female | Celtic |
| Iris | rainbow, a play of colours | Female | |
| Isabel | concecrated to God | Female | Spanish |
| Isabella | pledged to God | Female | Spanish |
| Isadora | gift of the moon | Female | Greek |
| Ivana | God is gracious | Female | Feminine |
| Ivy | ivy plant, a wine | Female | Plant |
| Jade | Jewel. Courageous and adoring.
| Female | Spanish |
| Jane | gracious, merciful, God is gracious | Female | English |
| Jasmine | Flower
| Female | Persian |
| Jenny | Diminutive of Jane and Jennifer.
| Female | English |
| Jenny | Diminutive of Jane and Jennifer.
| Female | English |