| Name | Meaning | Gender | Origin |
|---|
| Hyacinth | after the character in the sitcom Keeping Up Appearances | Female | |
| Iago | Supplanter
| Male | Welsh |
| Icy | | Unisex | Hebrew |
| Iliana | from Ilium or Troy | Female | Greek |
| India | Of India | Female | English |
| Indiana | Indiana, Usa, Meaning Land Of The Indians | Male | English |
| Indigo | A dark blue plant dye | Female | Greek |
| Ingrid | Ing's ride | Female | Norse |
| Iona | flower name, purple jewel | Female | Scottish |
| Ira | watchful, descendant | Male | Hebrew |
| Iris | rainbow, a play of colours | Female | |
| Isabell | Committed to God.
| Female | |
| Ivory | The hard, smooth, yellowish-white of an elephant's tusk. | Male | Word |
| Ivy | ivy plant, a wine | Female | Plant |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| Jade | Jewel. Courageous and adoring.
| Female | Spanish |
| Jaeger | Hunter | Unisex | German |
| Jaffa | beautiful | Female | Hebrew |
| Jamaica | Isle with many springs | Female | Place-name |
| Jasmine | Flower
| Female | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Jasper | Black stone
| Male | Persian |
| Javan | Son of Japtheth
| Male | Hebrew |