| Name | Meaning | Gender | Origin |
|---|
| Jimmy | Supplanter | Boy | |
| Jinny | Maiden, Virgin | Girl | |
| Jiphtah | He Opens, Whom God sets free | Boy | Hebrew |
| Jo | God shall add (a another son) | Unisex | |
| Joab | Jehovah is Father, Whose father is Jehovah | Boy | Hebrew |
| Joachim | Jehovah raises up | Boy | |
| Joah | Jehovah is Brother, Whose brother is Jehovah | Boy | Hebrew |
| Joahaz | Jehovah as seized, Whom Jehovah holds fast | Boy | Hebrew |
| Joan | God is gracious | Girl | Medieval |
| Joandra | God is gracious | Girl | |
| Joann | God is gracious | Girl | |
| Joanna | God is gracious | Girl | |
| Joanne | God is gracious | Girl | French |
| Joash | Given by the lord | Boy | Hebrew |
| Job | Hated, Oppressed, Persecuted | Boy | Greek |
| Jobeth | God is gracious and God is my oath | Girl | |
| Joby | Hated, Oppressed, Persecuted | Boy | |
| Jocasta | Violet Tinted Clouds | Girl | |
| Jocelin | Lion of God, Gaut | Unisex | |
| Joceline | Lion of God, Gaut | Unisex | |
| Jocelyn | Lion of God, Gaut | Unisex | |
| Jochebed | | Girl | Hebrew |
| Jock | God is gracious | Boy | Scottish |
| Jocosa | Lady | Girl | |
| Jodene | God is Gracious, Jewess, Praised | Girl | |
| Jodi | God is Gracious, Jewess, Praised | Unisex | |
| Jodie | God is Gracious, Jewess, Praised | Girl | |
| Jody | God is Gracious, God shall add (a another son) | Unisex | |
| Joe | God shall add (a another son) | Boy | |
| Joel | Yahweh is God | Boy | |
| Joelle | Yahweh is God | Girl | |
| Joetta | God is gracious | Girl | |
| Joey | God shall add (a another son) | Boy | |
| Johanan | God is gracious | Boy | Hebrew |
| Johanna | God is gracious | Girl | |
| Johanne | God is gracious | Girl | |
| John | God is gracious | Boy | Greek |
| Johna | God is gracious | Girl | |
| Johnathan | God has given | Boy | |
| Johnathon | God has given | Boy | |
| Johnie | God is gracious | Boy | |
| Johnna | God is gracious | Girl | |
| Johnnie | God is gracious | Unisex | |
| Johnny | God is gracious | Boy | |
| Joi | Joy | Girl | |
| Joisse | Lady | Girl | |
| Jojo | God is Gracious, God shall add (a another son) | Unisex | |
| Joktan | Small | Boy | Hebrew |
| Joleen | Pretty | Girl | |
| Jolene | Pretty | Girl | |
| Jolie | Pretty | Girl | |
| Jolyon | Descended from Jupiter (Jove) | Boy | Medieval |
| Jon | God has given | Boy | |
| Jona | Dove | Boy | Latin |
| Jonah | Dove | Boy | Hebrew |
| Jonathan | God has given | Boy | Hebrew |
| Jonathon | God has given | Boy | |
| Jonelle | God is gracious | Girl | |
| Jonette | God is gracious | Girl | |
| Joni | God is gracious | Girl | |
| Jonie | God is gracious | Girl | |
| Jonna | God is gracious | Girl | |