| Name | Meaning | Gender | Origin |
|---|
| Ivy | ivy plant, a wine | Female | Plant |
| Jace | Hebrew, the Lord is salvation | Male | Hebrew |
| Jack | after the Georgetown University mascot, Jack the Bulldog | Male | English |
| Jack | From John - God's gracious gift | Male | English |
| Jamie | Feminine of James | Female | Scottish |
| Java | Brewed coffee | Female | Anglicization |
| Jax | God has been gracious: has shown favor. Based on John or Jacques.
| Male | Modern |
| Jefferson | son of Jeffrey | Male | English |
| Jemma | Italian, precious stone | Female | Spelling |
| Jeremy | God will uplift, appointed by God | Male | English |
| Jerome | sacred name | Male | Greek |
| Jerry | after Jerry Garcia, The Grateful Dead | Male | English |
| Jesse | wealthy | Male | Hebrew |
| Jessica | God's grace | Female | Hebrew |
| Jessie | wealthy | Female | Anglicized |
| Jim | supplanter | Male | English |
| Jimmy | supplanter | Male | English |
| John | God is merciful | Male | Hebrew |
| Jonah | Dove. In the bible Jonah was on board a ship God caused to sink: sailors traditionally use the name Jonah to personify someone who brings bad luck.
| Male | Hebrew |
| Jonathan | God gives | Male | Hebrew |
| Jordy | Flow, Descend | Unisex | English |
| Josephine | God will increase | Female | |
| Josie | From Josephine - She shall add. | Female | English |
| Julius | after Julius Caesar | Male | Latin |
| Kamala | lotus | Female | Hindi |