| Isah | Gift, blessing, or a precious thing |
| Ishtiyaaq | Desire, longing, or strong passion |
| Ismaail | Gift of God, or a blessing from Allah |
| Iaenbeorht | A bright and noble person. |
| Idmaer | A name meaning noble protector. |
| Ihu | A name meaning a deep breath. |
| Il Yasin | Name of a prophet, also known as Elias in the Quran |
| Ilarios | Greek name meaning 'light' or 'glory' |
| Iliu | Hawaiian name meaning 'to be loved' or 'beloved' |
| Ilsaaq | Arabic name meaning 'one who is blessed' or 'fortunate' |
| Iltmas | Arabic name meaning 'one who is generous' or 'charitable' |
| Imeth | One who is truly honest. |
| Imira | One who is highly admired. |
| Immanol | God is always with us. |
| Imsaar | Arabic name meaning 'strong' or 'powerful' |
| Inbaz | Derived from Arabic, meaning 'gift of God' |
| Inbsaat | Arabic name meaning 'gift of God' or 'blessing' |
| Indeepa | TBD |
| Indisa | A name meaning a gift from the moon. |
| Indonesia | Derived from Greek, meaning 'Indian islands' |
| Indrasunu | The son of the deity Lord Indra. |
| Indrasura | A brave warrior of Lord Indra. |
| Indrechtaich | A name meaning Indras strength. |
| Indubhava | Born from the moon or nectar. |
| Indubhrit | One who bears the moon, Shiva. |
| Indubhusan | Lord Shiva, moon |
| Indveer | A brave and moonlike person. |
| Inga the swag | Modern name with no specific meaning, possibly a nickname |
| Inksaar | Arabic name meaning 'strong' or 'powerful' |
| Innocentius | Latin name meaning 'innocent' or 'pure' |
| Innocenzo | Italian name meaning 'innocent' or 'pure' |
| Innokentiy | Russian name meaning 'innocent' or 'pure' |
| Inoddya | A unique name meaning a bright spirit. |
| Inosh | A name representing a peaceful soul. |
| Insha Allah | Arabic phrase meaning 'God willing' or 'if God wills' |
| Inshith | A name meaning a gift of pure light. |
| Insuka | A name meaning a source of happiness. |
| Intkhab | Arabic name meaning 'chosen' or 'selected' |
| Intsaab | Arabic name meaning 'strong' or 'powerful' |
| Intzam | Arabic name meaning 'justice' or 'fairness' |