| Baby Name | Meaning | Gender |
|---|
| Isabel | Devoted To God | Female |
| Isabela | Variant Of Elizabeth. My God Is Bountiful:God Of Plenty. | Female |
| Isabella | Meaning Unknown | Female |
| Isabelle | Devoted To God | Female |
| Isadoro | Strong Gift. | Male |
| Isaias | God's Helper | Male |
| Ishmael | God Listens. In The Bible Ismael Was Son Of Abraham By Sarah's Egyptian Slave Woman Hagar. | Male |
| Isidora | Gifted With Many Ideas | Female |
| Isidoro | Gifted With Many Ideas | Male |
| Isidro | Gifted With Many Ideas | Male |
| Ismael | God Listens. In The Bible Ismael Was Son Of Abraham By Sarah's Egyptian Slave Woman Hagar. | Male |
| Itsaso | Sea | Female |
| Itxaro | Hope | Female |
| Ivan | Gift From God | Male |
| Ivette | Variant Of Yvette. | Female |
| Izar | Star | Female |
| Izarra | Star | Female |
| Izarre | Star | Female |
| Izazkun | Reference To The Virgin Mary | Female |
| Izzy | Unknown | Female |
| Jacinta | Beautiful | Female |
| Jacinto | Hyacinth | Male |
| Jacobo | Supplanter. | Male |
| Jade | Jewel. Courageous And Adoring. | Female |
| Jago | Supplanter | Male |