| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 981 | Jinx | Latin | Spell. | F | |
| 982 | Jo | Latin | Diminutive of Joanna: God is gracious. Feminine form of John (from the Latin, Johanna). | F | |
| 983 | Joana | Latin | Variant of Joan. | F | |
| 984 | Joanie | Latin | Variant of Joan. | F | |
| 985 | Joann | Latin | Variant of Joan. | F | |
| 986 | Joanna | Latin | God is gracious. Feminine form of John (from the Latin Johanna). | F | |
| 987 | Joanne | Latin | Variant of Joanna: God is gracious. Feminine form of John (from the Latin Johanna). | F | |
| 988 | Jocelin | Latin | Happy. | F | |
| 989 | Jocelyn | Latin | Happy. | F | |
| 990 | Joeanna | Latin | Variant of Joan. | F | |
| 991 | Joeanne | Latin | Variant of Joan. | F | |
| 992 | Jolyon | Latin | Feminine variant of Julian: Youthful. Jove's child. | F | |
| 993 | Jorcina | Latin | Variant of Georgina. | F | |
| 994 | Jorgelina | Latin | Variant of Georgina. | F | |
| 995 | Joscelin | Latin | Happy. | F | |
| 996 | Joy | Latin | Happy. | F | |
| 997 | Joyce | Latin | Happy. | F | |
| 998 | Joyceanne | Latin | Cheerful; merry. | F | |
| 999 | Joycelyn | Latin | Cheerful; merry. | F | |
| 1000 | Jude | Latin | Young. | F | |