| Name | Meaning | Gender | Origin |
|---|
| Hercules | Grandiose gift | Male | Greek |
| Herman | Man in the army | Male | Germanic |
| Hippie | | Unisex | Hebrew |
| Hippy | | Unisex | Hebrew |
| Homer | Pledge or hostage | Male | Greek |
| Hooch | | Unisex | Hebrew |
| Hyde | Exquisite | Unisex | English |
| Iggy | Latin, fiery | Male | English |
| Izzy | Unknown | Male | English |
| Jackpot | | Unisex | Hebrew |
| Jaws | Bones that form the mouth. A dangerous situation - "The Jaws of Death" | Unisex | English |
| Jerry | Spear ruler | Male | Germanic |
| Jingles | | Unisex | Hebrew |
| Joey | He will enlarge | Male | Hebrew |
| Lady | Lady | Unisex | English |
| Lemon | Beloved man | Unisex | English |
| Lex | Defending men | Unisex | Greek |
| Licorice | Confection made from the licorice root. | Unisex | English |
| Lime | | Unisex | Hebrew |
| Lizzy | My God is a vow | Unisex | Hebrew |
| Lou | Fame and war | Male | Germanic |
| Lucky | Fortunate | Unisex | English |
| Major | Greater | Male | Latin |
| Maverick | Dissenter | Unisex | English |
| Max | Little Maximus | Male | Latin |
| Mickey | Who is like God? | Unisex | Hebrew |
| Milo | Uncertain, perhaps peaceful | Male | Germanic |
| Mischief | One that causes minor trouble or disturbances | Unisex | English |
| Monster | A creature of frightening appearance | Unisex | English |
| Moo | | Unisex | Hebrew |