| I’jaz | I-Chairo | I-Noah |
| Iago | Iain | Ian |
| Iann | Iaquinta | Iason |
| Iavor | Ib | Ibbe |
| Ibe | Iben | Ibi |
| Ibiraahim | Ibo | Ibon |
| Ibrahiem | Ibrahim | Ibrahima |
| Ibrihim | Ichiro | Idan |
| Ide | Iderisa | Idessay |
| Idian | Idir | Ido |
| Idries | Idris | Idriss |
| Ids | Idsard | Idse |
| Idwer | Iebe | Iede |
| Ieke | Ieme | Ies |
| Iesa | Iesaa | Ieuan |
| Ife | Ifeandji | Iffraan |
| Ifgencio | Ifmorel | Iggi |
| Iggy | Ignacio | Ignacy |
| Ignat | Igno | Igor |
| Ihabe | Ihme | Ihsaan |
| Ihsan | Ihsane | IJsbrand |
| IJsbrant | Ike | Ikenna |
| Iker | Ilai | Ilaij |
| Ilan | Ilano | Ilario |
| Ilawarasan | Ilay | Ilaydin |
| Ilayndro | Ilco | Ilham |
| Ilhami | Ilhan | Ilia |
| Iliah | Ilian | Iliano |
| Ilias | Iliass | Ilija |
| Iliyas | Ilja | Iljah |
| Ilkan | Ilker | Illari |
| Illian | Illias | Illyas |
| Ilmar | Ilmas | Ilya |
| Ilyaas | Ilyan | Ilyano |
| Ilyas | Ilyass | Ilyasse |
| Ilyes | Ilyess | Imad |
| Imar | Ime | Immad |
| Immanuel | Immanuël | Imme |
| Imnairo | Imraan | Imran |
| Imrana | Imrane | Imre |
| Imre-Jan | Imri | Imro |
| Imtiaaz | Iñaki | Inal |
| Inan | Inden | Inderprakash |
| Indi | Indigo | Indra |
| Indre | Indy | Inema |
| Inesh | Infairo | Ingemar |
| Ingenatus | Ingmar | Ingo |
| Ingomar | Innis-Roy | Inuk |
| Ioan | Ioannis | Iorek |
| Irfaan | Irfan | Irmanuelo |
| Irnes | Irshano | Irtaza |
| Irvan | Irvano | Irvin |
| Iryan | Isa | Isaac |
| Isaak | Isaam | Isah |
| Isai | Isaï | Isaïah |
| Isaiah | Isairo | Isak |
| Isam | Isar | Ísar |
| Isay | Isayah | Isaäc |
| Iscah | Ischa | Ise |
| Ises | Isha | Ishaak |
| Ishaan | Ishaanwir | Ishaaq |
| Ishai | Ishak | Ishan |
| Îshan | Ishano | Ishant |
| Ishaq | Ishgan | Ishmaël |
| Ishmael | Ishvan | Ishvar |
| Ishwar | Isiah | Isiaih |
| Isidor | Iskander | Islam |
| Ismaeal | Ismael | Ismaël |
| Ismail | Ismaïl | Ismail-Emirhan |
| Ismayil | Ismet | Isra |
| Israel | Israël | Issa |
| Issac | Issam | Issam-Mouloud |
| Issanour | Issy | Istvan |
| Itai | Italo | Itamar |
| Itay | Itouba | Itse |
| Itzaír | Ivan | Ivanho |
| Ivano | Ivar | Ivayrickson |
| Ive | Iven | Ivèn |
| Ives | Ivo | Ivor |
| Ivramabama | Iwán | Iwan |
| Iwany | Iyaad | Iyad |
| Iylias | Izaac | Izaak |
| Izaan | Izak | Izayah |
| Izaäk | Izen | Izhar |
| Izrahiah | Izton | Izzet |