| Inuka | To rise up or grow stronger. |
| Inus | Derived from Latin, meaning 'of the island' |
| In’am | act of benefaction |
| Ionas | Hebrew name meaning 'God is gracious' |
| Ior | A name meaning light or bright. |
| Iordanis | One who flows down or descends. |
| Iouis | Latin name meaning 'youthful' or 'full of life' |
| Ioulianos | Greek name meaning 'youthful' or 'full of life' |
| Ir | Watchman, city, vision |
| Irappa | Eliminating the Enemy |
| Irash | A name meaning desire or wish. |
| Irdam | Arabic name meaning 'strong' or 'powerful' |
| Ireel | Derived from Hebrew, meaning 'God is my God' |
| Irek | A Polish name meaning peaceful. |
| Irindu | One who brings great happiness. |
| Irken | Unknown or unverified origin |
| Irqaam | Arabic, means 'one who strives or strives hard' |
| Irrylath | Unknown or unverified origin |
| Irsyaad | Guidance, Support |
| Isadorios | A name meaning gift of the goddess. |
| Isaeah | Yahweh is salvation |
| Isaija | Yahweh is salvation |
| Isala | A name meaning a flowing water stream. |
| Ish Tob | A man who is good and upright. |
| Ishaar | Arabic, means 'gift' or 'present' |
| Ishbi Benob | Respiration conversion taking captive |
| Ishtaal | Arabic, means 'gift' or 'present' (masculine form) |
| Isindu | A name meaning pure moonlight. |
| Isira | One who is quick and energetic. |
| Isitha | One who is desired by everyone. |
| Isler | Tiler, tile maker, a brick, a tile |
| Isley | English, means 'God is my salvation' |
| Ism e jalali | Arabic, means 'name of the Almighty' |
| Ismail X | Arabic, means 'listener to Allah' (variant of Ismail) |
| Isma’il | God will hear |
| Israeel | Hebrew, means 'God will prevail' |
| Isrrael | Contender with god |
| Issai | Meaning salvation from God. |
| Isseer | Arabic, means 'one who strives or strives hard' |
| Istahssan | Arabic, means 'excellence' or 'superiority' |