| comment/origin etc. | famous bearer of this name |
| Iaazipaa | (babylonian) |
| Iacopo | (see Jacob etc.) |
| Iago | (spanish) |
| Iain | (scottish) |
| Ian | (scottish) |
| Iannis |
| Iarfhlaith | (irish) |
| Iarla | (irish) |
| Iasion | (greek) |
| Iason | (greek) |
| Ib |
| Iba |
| Ibado |
| Iban |
| Ibbi-Adad | (babylonian) |
| Ibra |
| Ibrahim | (hebrew) |
| Ibrahima |
| Ibrahimasory |
| Icchok |
| I-Chen | (chinese) |
| Ichiro |
| Idaeus | (roman) |
| Ideug | (female too) |
| Idris |
| Idrissa | (sounds female, but given) |
| Iduned |
| Ifor |
| Ignac | (slovenian version) |
| Ignace |
| Ignacij |
| Ignacio | (spanish version) |
| Ignacy |
| Ignadios |
| Ignas |
| Ignatius | (roman) |
| Ignatz | (german version) |
| Ignaz |
| Ignazio |
| Igno |
| Igor | | (Igor Strawinsky, russian composer [*1882 +1971])
|
| Ihab | (female too) |
| Ihei | (japanese) |
| Ihsan | (turkish) |
| Ijob | (also Hiob, scriptural) |
| Ikaika | (sounds female) |
| Ike |
| Ikkesch | (scriptural) |
| Ikuppi-Adad | (babylonian) |
| Ilaiyavan |
| Ilakkiyan |
| Ilakkuvan |
| Ilamaaran |
| Ilamadhi |
| Ilamuhil |
| Ilamuhilan |
| Ilan |
| Ilancheral |
| Ilandevan |
| Ilango |
| Ilangovan |
| Ilanthiraiyan |
| Ilanthiruman |
| Ilanthirumaran |
| Ilario |
| Ilas | (greek) |
| Ilavalagan |
| Ilavarasan |
| Ilavenil |
| Ilce |
| Ildefons |
| Ilesanmi |
| Iliya |
| Ilja (slavian) |
| Ilko-Sascha |
| Illinois |
| Ilmari |
| Ilmars |
| Iltud |
| Ilya | (see Ilja, american transcription version, best ever would be an *Ylya...) |
| Imad |
| Imamu |
| Imanuel |
| Imbali |
| Immanuel | (scriptural, see also Emmanuel) | (Immanuel Kant, german philosopher) |
| Imo |
| Imogen | (female too) |
| Imre | (hungarian) |
| Inaki |
| Inbanathan |
| Indra |
| Indrassen |
| Indrek | (estonian) |
| Infant |
| Ingamar |
| Ingamur |
| Ingbert |
| Ingemar |
| Inger |
| Ingmar | | (Ingmar Bergman, swedish film-director) |
| Ingo |
| Ingolf |
| Ingomar |
| Ingram |
| Ingwar |
| Ingvar |
| Inigo |
| Inimoliyan |
| Iniyan |
| Iniyavan |
| Innocentius |
| Innocenty |
| Innokenti |
| Innozenz |
| Ioan |
| Ioannes | (greek) |
| Iobates | (greek) |
| Ion | (greek origin) |
| Iophon | (greek) |
| Iossif |
| Iossip |
| Iphion | (greek) |
| I-Po | (chinese) |
| Ippolito |
| Ipqu-Annunitum | (babylonian) |
| Ipqu-Aya | (babylonian) |
| Ira | (scriptural, also female) |
| Irad | (scriptural) |
| Iraiyamudhan |
| Iraiyan |
| Iraiyannal |
| Iraiyarasan |
| Iraiyavan |
| Iram | (scriptural) |
| Irenäus |
| Ireneusz |
| Irmfried |
| Irumporai |
| Irvin |
| Irving |
| Irwin |
| Isa | (also female, then as a short form of Isabelle) |
| Isaac | (scriptural) |
| Isaak | (scriptural) |
| Isahak |
| Isai | (scriptural) |
| Isaiah | (scriptural) |
| Isaias | (scriptural) |
| Isaikko |
| Isaimani |
| Isain |
| Ishaeanupa |
| Ishag | (armenian) |
| Ishaq |
| Ishemunyoro |
| Ishkhan | (armenian) |
| Ishkhanag | (armenian) |
| Isma'il |
| Isme-Ea | (babylonian) |
| Isiah | (scriptural, version) |
| Isidor |
| Isidorius |
| Isidoro |
| Isik |
| Isiratuu | (babylonian) |
| Iskender |
| Islam |
| Ismael | (scriptural) |
| Ismailaki |
| Ismo |
| Isokrates | (greek) |
| Israel | (scriptural) |
| Israil | (scriptural) |
| Israr |
| Israyel | (scriptural) |
| Issa |
| Issac |
| Issachar | (scriptural) |
| Issaruutunu | (babylonian) |
| Issiaka |
| Istvan |
| Italo | | (Italo Svevo, writer) |
| Itamar |
| I-Tsing | (chinese) |
| Itzel |
| Itzhak | (hebrew) |
| Iulian | (romanian, see Julian etc.) |
| Iustan |
| Iv |
| Iva | (sounds female) |
| Ivan |
| Ivan-Marin |
| Ivar |
| Iver |
| Ivi |
| Iviaz |
| Ivo |
| Ivon |
| Ivon-Albert |
| Ivor |
| Iwailo |
| Iwan |
| Iwo |
| Iyrie | (sounds female) |
| Iyyappan |
| Izak | (slovenian version of Isaac) |
| Izatt |
| Izaokas |
| Izel |
| Izidor |
| Izidorius |
| Iztok | (slovenian) |
| Izydor |
| Izzat |
| Izzy |