| Name | Meaning | Gender | Origin |
|---|
| Hera | Queen of the Gods | Female | Greek |
| Hilda | Battle maid
| Female | |
| Hildegard | Battle Penn | Unisex | German |
| Hubbard | Graceful | Unisex | German |
| Ida | prosperous | Female | |
| Inga | guarded by Ing | Female | Norse |
| Irma | universal, complete | Female | |
| Isana | Strong willed
| Female | |
| Isane | Strong willed
| Female | |
| Isold | Rule of ice
| Female | |
| Isolda | Rule of ice
| Female | |
| Jakob | Supplanter, Representative | Unisex | German |
| Jansen | Variant Of The Hebrew John Jehovah Has Been Gracious; Has Shown Favor. | Unisex | German |
| Joli | Cheerful; Pretty. | Unisex | English |
| Jutta | Of Judea | Unisex | German |
| Kaiser | Any of the emperors of The Holy Roman Empire, Austria or Germany | Unisex | |
| Kasimir | Famous, Great Destroyer | Unisex | Slavic |
| Katarina | pure | Female | Czech |
| Katinka | after the character in the movie Zoolander | Unisex | |
| Katja | Pure.
| Female | |
| Katrina | Greek, pure | Female | |
| Kirsten | christian; stone church | Female | Scandinavian |
| Klara | Clear, Bright | Unisex | Scandinavian |
| Konrad | Bold, Wise Councelor | Unisex | German |
| Kristen | Anointed, Follower Of Christ | Female | Danish |