| Name | Meaning | Gender | Origin |
| Ishbak | Who is empty or exhausted. | M | Biblical |
| Ishbel | Oath of God. | F | Scottish |
| Ishbi-benob | Respiration/ conversion/ taking captive. | M | Biblical |
| Ishbosheth | A man of shame | M | Biblical |
| Ishfaaq | Variant of Ishfaq: Compassion. Kindness. | M | Muslim |
| Ishfaq | Compassion. Kindness. | M | Muslim |
| Ishi | Salvation. | M | Biblical |
| Ishiah | It is the Lord | M | Biblical |
| Ishma | Named/ marveling/ desolation. | F | Biblical |
| Ishmachiah | Cleaving to the Lord. | F | Biblical |
| Ishmael | God Will Hear | M | Hebrew |
| Ishmaiah | Hearing or obeying the Lord. | M | Biblical |
| Ishmerai | Keeper/ or keeping. | F | Biblical |
| Ishod | A comely man | M | Biblical |
| Ish-pan | Hid/ broken in two. | F | Biblical |
| Ishrat | Intimacy. Companionship. | M | Muslim |
| Ishtar | The Babylonian goddess of love. | F | Persian |
| Ishtiaq | Longing. Craving. | M | Muslim |
| Ish-tob | Good man | M | Biblical |
| Ishua | Plainness/ equal. | M | Biblical |
| Ishvara | Lord. | M | Indian |
| Isi | Consecrated to God | F | Spanish |
| Isiah | God's helper. | M | Hebrew |
| Isibeal | Devoted to God. | F | Hebrew |
| Isidora | Variant of Isadora: Gift of Isis (this name is Greek even though Isis is an Egyptian deity). | F | Greek |
| Isidore | Strong Gift. Gift of Isis (this name is Greek/ even though Isis is an Egyptian deity). St Isidore of Seville tried to convert Spanish Jews to Christianity during the 7th century. | M | Greek |
| Isidoro | Gifted with many ideas. | M | Spanish |
| Isidoror | Strong gift. | M | Greek |
| Isidro | Gifted with many ideas. | M | Spanish |
| Isidrro | Strong gift. | M | Greek |
| Isis | Supreme Goddess of the stars | F | Egyptian |
| Isla | Island | F | Celtic/Gaelic |
| Islaam | Variant of Islam: Peace. Peaceful. Very safe. | M | Muslim |
| Islam | Peace. Peaceful. Very safe. | M | Muslim |
| Isleen | Form of EILEEN | F | Celtic/Gaelic |
| Isleif | Brother of Isrod. | M | Norse |
| Islene | Vision. | F | Irish |
| Ismaa'eel | Variant of Ismael: The Biblical Ishmael is the English language equivalent. A Prophet's name. | M | Muslim |
| Ismael | God Will Hear | M | Hebrew |
| Ismaela | God Listens | F | Hebrew |
| Ismail | God will Hear | M | Hebrew |
| Ismat | Chastity. Purity. | M | Muslim |
| Ismay | Feminine form of Esme: An Old French variant of the Latin 'aestimatus' meaning esteemed/ or 'amatus' meaning loved. | F | French |
| Ismene | Daughter of Oedipus. | F | Greek |
| Ismet | Honor | M | Turkish |
| Ismini | Daughter of Oedipus. | F | Greek |
| Isobail | Devoted to God. | F | Gaelic |
| Isobel | Scottish form of Isabel: consecrated to God. | F | Scottish |
| Isohel | Variant of Elizabeth: From the Hebrew Elisheba/ meaning either oath of God/ or God is satisfaction. | F | Greek |
| Isoke | Gift from God | F | African |