| Name | Origin | Meaning | Gender |
| IAMAR | arabic | moon | female |
| Iamar | Arabic | Moon | female |
| IANTHE | greek | flower | female |
| IASIUS | greek | myth name (mother of Atalanta) | female |
| Ibernia | Irish | From Ireland | female |
| IBLIS | arthurian | wife of Lancelot | female |
| Iblis | Arthurian Legend | Wife of Lancelot | female |
| IBOLYA | hungarian | violet | female |
| IBTIHAJ | arabic | joy | female |
| ICA | hungarian | light | female |
| ICHTACA | nahuatl | unisexual name meaning "secret." | female |
| ICNOYOTL | nahuatl | unisexual name meaning "friendship." | female |
| IDA | german | active | female |
| IDA | greek | myth name (name of mountain) | female |
| Ida | Irish | Thirsty | female |
| Ida | German | Active | female |
| Ida | English | Diligent. A Greek mythological nymph who cared for the infant Zeus on Mt. Ida. | female |
| Idaia | German | Active | female |
| IDALIA | greek | myth name | female |
| Idalie | German | Active | female |
| Idalis | Teutonic | "Happy, Noble Laborer" | female |
| Ide | Irish | Thirsty | female |
| Idelisa | Celtic | Bountiful. | female |
| Idelle | Celtic | Bountiful. | female |
| Idetta | German | Hard working | female |
| IDETTE | german | hard-working | female |
| Idette | German | Hard working | female |
| Idla | English | Battle | female |
| Idna | German | Active | female |
| Idoia | Spanish | Reference to the Virgin Mary | female |
| IDOLA | greek | a vision | female |
| Idurre | Spanish | Reference to the Virgin Mary | female |
| Ierne | Irish | From Ireland | female |
| IFE | egyptian | love | female |
| IFEOMA | Africa | Ibo of Nigeria name meaning "it's a good thing" and "beautiful." | female |
| IFIELD | anglo | Meaning unknown | female |
| Ifig | English | Ivy | female |
| Igerne | Arthurian Legend | Mother of Arthur | female |
| Ignacia | Spanish | Fire | female |
| IGONE | basque | refers to Christ's Ascension | female |
| Igone | Spanish | Ascension | female |
| Igraine | Arthurian Legend | Mother of Arthur | female |
| Igraine | English | In Arthurian legend Igrayne is mother of Arthur. | female |
| IGRAINE, | arthurian | mother of Arthur | female |
| Igrayne | Arthurian Legend | In Arthurian legend Igrayne is mother of Arthur. | female |
| IHRIN | romanian | peace | female |
| Ikerne | Spanish | Visitation | female |
| IKRAM | arabic | honor; hospitality; generosity | female |
| ILA | french | from the island | female |
| Ila | French | From the island | female |
| ILANA | hebrew | tree | female |
| Ilana | Hebrew | Tree | female |
| Ilane | Irish | Island. | female |
| Ilanit | Hebrew | Tree | female |
| Ilasha | American | "Gental,Sensitive,Kind,Loving" | female |
| ILDE | english | battle | female |
| Ilde | English | Battle | female |
| ILEANA | greek | from Troy | female |
| ILEANA | romanian | Trojan | female |
| Ileana | Greek | | female |
| Ileanna | Spanish | Variant of Elena. | female |
| Ilena | English | Variant of Eileen. | female |
| Ilene | English | Variant of Eileen. | female |
| Ilex | English | Variant of Alex. | female |
| ILHUITL | nahuatl | unisexual name meaning "day." | female |
| ILIA | hebrew | God is Lord | female |
| Ilia | Hebrew | God is Lord | female |
| Iliana | Spanish | Variant of Elena. | female |
| ILITHYA | greek | myth name | female |
| ILONA | greek | light | female |
| Ilsa | German | Abbreviation of Elizabeth. | female |
| ILSE | german | noble | female |
| ILSE | hebrew | God's word | female |
| Ilse | English | Variation of Elizabeth. My God is bountiful:God of plenty. | female |
| Ilse | German | Noble | female |
| Ilse | Hebrew | God's word | female |
| Iluminada | Spanish | Illuminated | female |
| Ilyse | German | Noble | female |
| Imala | Native American | Disaplines | female |
| IMAN | Africa | Somali and Muslim name meaning "faith." | female |
| IMAN | arabic | faith; belief | female |
| Imani | Swahili | Faith (one of the seven principles of Kwanzaa) | female |
| IMANUELA | romanian | God is among us | female |
| Imara | Unknown | Female version of Imre | female |
| Imelda | Spanish | Powerful fighter. The name of a fourteenth-century Spanish saint. | female |
| Immaculada | Spanish | The Immaculate Conception | female |
| Imogen | Celtic | An image. Image of her mother. Blameless/innocent. | female |
| IMTITHAL | arabic | polite obedience | female |
| IN'AM | arabic | kindness; benefaction; bestowal | female |
| INA | chamoru | Unisexual name meaning "illuminate; light up." | female |
| Ina | English | Nickname dirived from suffix of many names. | female |
| INAS | arabic | sociability | female |
| INAYA | arabic | concern; solicitude | female |
| Inaya | Muslim | Concern solicitude | female |
| Inda | English | The country India. | female |
| Indee | English | The country India. | female |
| INDIA | hindi | Unisexual name meaning "river." | female |
| India | English | The country India. | female |
| Indiana | English | The country India. | female |
| INDIRA | hindi | Unisexual name meaning "spendid." INDRA | female |
| INDRANI | India | myth name (goddess of the sky) | female |
| INDUMATI | India | myth name (daughter of Vidarbha) | female |
| Ines | Spanish | Meek. Chaste. Variant of Agnes. | female |
| INESA | greek | king, innocent | female |
| Inez | Spanish | Meek. Chaste. Variant of Agnes. | female |
| INGA | danish | daughter of a hero | female |
| INGEBORG | danish | Ing's protection | female |
| INGELISE | danish | Ing's grace | female |
| Inghean | Scottish | Daughter | female |
| Inghinn | Scottish | Daughter | female |
| INGRIA | finnish | hero's daughter | female |
| Ingrid | Old English | Meadow | female |
| INIGA | italian | fiery | female |
| ININA | chamoru | glimmer of light | female |
| Inis | Irish | From Ennis | female |
| INO | greek | myth name (daughter of Cadmus) | female |
| Inoceneia | Spanish | Innocent | female |
| Inocenta | Spanish | Innocent | female |
| INTISAR | arabic | triumphant | female |
| Intisar | Arabic | Triumphant | female |
| Intisara | Arabic | Triumphant | female |
| Intizara | Arabic | Triumphant | female |
| IOANA | romanian | violet | female |
| IOLA | greek | myth name (sister of Iphitus) | female |
| IOLANA | hawaiian | to soar like and eagle or hawk | female |
| IOLANTHE | greek | violet | female |
| IONA | celtic | from the king's island | female |
| IONA | greek | amethyst | female |
| IONA | romanian | amethyst | female |
| Iona | English | Violet. | female |
| Iona | Scottish | Violet. | female |
| Iona | Celtic | From the king's island | female |
| IONANNA | hebrew | grace | female |
| Ionanna | Hebrew | Grace | female |
| Ione | Celtic | From the king's island | female |
| IONELA | romanian | meaning unknown | female |
| IPHEGENIA | greek | myth name (daughter sacrificed by Agamemnon) | female |
| IPO | hawaiian | darling | female |
| Iraida | Unknown | Unknown | female |
| Iratze | Spanish | Reference to the Virgin Mary | female |
| IRENA | greek | peace | female |
| Irene | Spanish | Peace | female |
| IRENKE | hungarian | peaceful | female |
| IRIS | greek | rainbow | female |
| IRIS | hebrew | flower | female |
| Iris | Hebrew | Flower | female |
| IRMA | german | war goddess | female |
| Irma | German | War goddess | female |
| Irmgard | German | War goddess | female |
| Irmigard | German | War goddess | female |
| Irmina | German | War goddess | female |
| Irmine | German | War goddess | female |
| Irmuska | German | War goddess | female |
| IRTA | greek | pearl | female |
| Irune | Spanish | Reference to the Holy Trinity | female |
| Irvetta | English | Friend of the sea | female |
| IRVETTE | english | friend of the sea | female |
| Irvette | English | Friend of the sea | female |
| ISA | chamoru | rainbow | female |
| ISA | german | strong-willed | female |
| Isa | German | Strong willed | female |
| Isabeau | French | Variant of Elizabeth. My God is bountiful:God of plenty. | female |
| ISABEL | hebrew | devoted to God | female |
| Isabel | Spanish | Devoted to God | female |
| Isabel | English | Variation of Elizabeth. My God is bountiful:God of plenty. | female |
| Isabel | Hebrew | Devoted to God | female |
| Isabela | Spanish | Variant of Elizabeth. My God is bountiful:God of plenty. | female |
| ISABELLA | arthurian | meaning unknown | female |
| ISABELLA | italian | Italian from of Isabel (consecrated to God) | female |
| Isabella | Spanish | Variant of Elizabeth. My God is bountiful:God of plenty. | female |
| Isabella | Hebrew | Devoted to God | female |
| Isabelle | Hebrew | Devoted to God | female |
| Isabelle | English | Variant of Elizabeth. My God is bountiful:God of plenty. | female |
| Isabellia Saral | Unknown | Unknown | female |
| ISADORA | greek | gift of Isis | female |
| Isana | German | Strong willed | female |
| Isane | German | Strong willed | female |
| ISAURA | greek | gentle breeze | female |
| ISEABAL | gaelic | devoted to God | female |
| Iseabal | Scottish | Scottish form of Isabel consecrated to God | female |
| Isha | Hebrew | Woman. | female |
| ISHANI | India | lady | female |
| Ishanvi | Hindu | Goddess of knowledge. | female |
| ISI | native | Choctaw name meaning "deer." ISTAS | female |
| Isi | Native American | Deer (Choctaw) | female |
| Isibeal | Irish | Irish form of Isabel consecrated to God | female |
| Isibeal | Hebrew | Devoted to God | female |
| Isidora | Spanish | Gifted with many ideas | female |
| ISIS | egyptian | myth name (goddess of magic) | female |
| Isleen | Irish | Vision | female |
| Islene | Irish | Vision | female |
| ISMENE | greek | myth name (daughter of Oedipus) | female |
| ISMITTA | Africa | Mythical N. African name for the southern wind, meaning "Daughter of the Mountains of the Moon." | female |
| Isobel | Scottish | Scottish form of Isabel consecrated to God | female |
| ISOLD | celtic | the fair | female |
| Isold | German | Rule of ice | female |
| Isold | Celtic | The fair | female |
| ISOLDA | german | rule of ice | female |
| Isolda | Celtic | The fair | female |
| Isolda | German | Rule of ice | female |
| ISOLDE | arthurian | lover of Tristan | female |
| Isolde | Arthurian Legend | Lover of Tristan | female |
| Isolde | Celtic | The fair | female |
| Isole | German | Rule of ice | female |
| Isoud | Arthurian Legend | Lover of Tristan | female |
| Isoude | Arthurian Legend | Lover of Tristan | female |
| ISSA | Africa | Swahili name meaning "God is our salvation." | female |
| Istas | Native American | Snow | female |
| ITA | gaelic | thirsty | female |
| Ita | Irish | Thirsty | female |
| ITOTIA | nahuatl | unisexual name meaning "dance." | female |
| Itsaso | Spanish | Sea | female |
| Ituha | Native American | Sturdy oak | female |
| Itxaro | Spanish | Hope | female |
| IUITL | nahuatl | unisexual name meaning "feather." | female |
| IULIA | romanian | young | female |
| IVA | french | from the yew tree | female |
| Iva | English | A climbing evergreen ornamental plant. | female |
| Iva | French | From the yew tree | female |
| Iva | Hebrew | Gift from God | female |
| Ivalyn | English | A climbing evergreen ornamental plant. | female |
| Ivana | Hebrew | Gift from God | female |
| IVANA, | hebrew | gift from God | female |
| Ivane | Hebrew | Gift from God | female |
| IVANNA | greek | gift of the gods | female |
| Ivanna | Hebrew | Gift from God | female |
| IVEREM | Africa | Tiv of Nigeria name meaning "blessing, favor." | female |
| Ivette | Spanish | Variant of Yvette. | female |
| Ivey | English | A climbing evergreen ornamental plant. Ivy | female |
| Ivie | English | A climbing evergreen ornamental plant. | female |
| IVONA | romanian | gift from God | female |
| Ivonne | French | Variant of Yvonne. | female |
| Ivory | English | White: pure. Reference to creamy-white color of ivory: or to the hard tusk used for carving fine art and jewelry. | female |
| IVY | english | ivy | female |
| IVY | greek | ivy | female |
| Ivy | English | Ivy | female |
| Ivyanne | English | A climbing evergreen ornamental plant. | female |
| IXCATZIN | nahuatl | like cotton | female |
| IXTLI | nahuatl | unisexual name meaning "face." | female |
| IYANGURA | Africa | Nyanja of Zambia name meaning "to arbitrate" or "to perform ceremonies for the birth of twins." | female |
| Iyanna | English | Unknown | female |
| Iyonna | Greek | Variant of Hannah. Gracious. | female |
| IZABELA | romanian | devoted to God | female |
| Izabella | Hebrew | Devoted to God | female |
| Izabelle | Indian | Beautiful | female |
| Izar | Spanish | Star | female |
| Izarra | Spanish | Star | female |
| Izarre | Spanish | Star | female |
| Izazkun | Spanish | Reference to the Virgin Mary | female |
| IZDIHAR | arabic | flourishing; blooming | female |
| IZEL | nahuatl | unique | female |
| Izett | Irish | Irish form of Isolda | female |
| IZSO | hebrew | God's salvation | female |
| Izso | Hebrew | God's salvation | female |
| Izusa | Native American | White stone | female |
| Izzy | Unknown | Unknown | female |