| Iakopa | Holding the heel |
| Iana | God is forgiving |
| Ianeke | God is forgiving |
| Iann | God is gracious; in the bible; one of the apostles |
| Ianto | Italian surname derived from 'già noto,' meaning 'already known' or 'well-known,' possibly indicating a family of prominence. |
| Iarlaith | Ruler of the western kingdom |
| Ib | Following after |
| Ibraahim | Father of many; exalted father |
| Ibragim | Father of many; exalted father |
| Ibrahaim | Exalted father of many nations |
| Ibrahima | Father of many; exalted father |
| Ibrahimu | Father of many; exalted father |
| Icabod | Icabod means 'empty without God' or 'God is not here', derived from Hebrew words 'ayin' and 'cabod'. |
| Ices | Derived from the word for ice. |
| Idaspathi | Lord of the sacrificial fire. |
| Idda | A name meaning a time or period. |
| Ideh | A name meaning a gift or talent. |
| Idhanta | A name meaning luminous light. |
| Ido | A name meaning a powerful time. |
| Idolena | A name meaning a devoted gift. |
| Idoya | Derived from a pond or pool. |
| Idys | A name meaning a sweet desire. |
| Iekika | One who can foresee |
| Ieni | Ieni is a rare surname of Italian origin, possibly derived from the Latin word 'iugum,' meaning yoke or burden. |
| Ieremias | The Lord loosens; God will uplift |
| Ifan | Ifan is a Welsh name meaning 'strong lord' or 'noble leader', derived from the Old Welsh 'efan'. |
| Ignas | Ignas is a Lithuanian name meaning 'fiery' or 'passionate', derived from the Latin name Ignatius. |
| Ignatz | Ignatz is a German name meaning 'fiery' or 'blazing', derived from the Latin 'ignis'. |
| Ignotus | Unknown, mysterious, or obscure, derived from Latin 'ignotus', meaning not known or unknown. |
| Ihlas | Sincerity, purity of intention, and devotion to one's faith or a cause without expectation of reward. |
| Ihor | Ukrainian name 'Ihor' means 'God's gift' or 'God's peace', derived from the Greek name 'Georgios'. |
| Iida | Hardworking woman |
| Iines | A name meaning pure or holy. |
| Iisakki | One who brings laughter |
| Ikaia | The Lord is my salvation. |
| Ikee | Full of laughter |
| Ikemefuna | Ikemefuna means 'God is with me' or 'God is my strength' in the Igbo language. |
| Ikki | Single horseman |
| Ikshuda | One who gives sweetness. |
| Ikshura | One who is sweet like sugar. |