| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 581 | Isabeau | French | Variant of Elizabeth. My God is bountiful;God of plenty. | F | |
| 582 | Ismay | French | Feminine form of Esme: An Old French variant of the Latin 'aestimatus' meaning esteemed, or 'amatus' meaning loved. | F | |
| 583 | Iva | French | From the yew tree. | F | |
| 584 | Ivonne | French | Variant of Yvonne. Yew. Archer. | F | |
| 585 | Jacalyn | French | Feminine of Jacques derived from James and Jacob. Supplanter. She grasps the heel. | F | |
| 586 | Jacinthe | French | Hyacinth. | F | |
| 587 | Jackie | French | Diminutive of Jacqueline: Supplanter. Feminine form of Jacques (Jacob). Introduced into Britain in the 13th century. | F | |
| 588 | Jacky | French | Diminutive of Jacqueline: Supplanter. Feminine form of Jacques (Jacob). Introduced into Britain in the 13th century. | F | |
| 589 | Jacqualine | French | Feminine of Jacques derived from James and Jacob. | F | |
| 590 | Jacqueleen | French | Feminine of Jacques derived from James and Jacob. | F | |
| 591 | Jacqueline | French | Feminine form of Jacques: Supplanter. He grasps the heel. French form of Jacob.Supplanter. Introduced into Britain in the 13th century. | F | |
| 592 | Jacquelyn | French | Feminine form of Jacques (French form of Jacob): Supplanter. He grasps the heel. | F | |
| 593 | Jacquelyne | French | Feminine of Jacques derived from James and Jacob. | F | |
| 594 | Jacquelynne | French | Feminine of Jacques derived from James and Jacob. | F | |
| 595 | Jacquenetta | French | Little Jacques. | F | |
| 596 | Jacquenette | French | Little Jacques. | F | |
| 597 | Jacquetta. Jacquet | French | Feminine form of Jacques (French form of Jacob): Supplanter. He grasps the heel. | F | |
| 598 | Jacqui | French | Diminutive of Jacqueline: Supplanter. Feminine form of Jacques (Jacob). Introduced into Britain in the 13th century. | F | |
| 599 | Jaquelin | French | Feminine of Jacques derived from James and Jacob. | F | |
| 600 | Jasmeen | French | A flower name from the older form Jessamine. | F | |