| Name | Meanings | Gender | Origin |
|---|---|---|---|
| Iain | god's gracious gift | Boy | Gaelic |
| Ian | god is gracious | Boy | Scottish |
| Ianna | Fem. form of IAN - god is gracious | Girl | |
| Ianthe | violet-colored flower | Girl | Greek |
| Ibrahim | form of ABRAHAM - father of a multitude | Boy | Arabic |
| Ibtisam | smile | Girl | Arabic |
| Id | festival | Boy | Arabic |
| Ida | prosperous | Girl | English |
| Idalee | From IDA and LEE | Girl | |
| Idalia | From IDA and LEE | Girl | Greek |
| Idana | From IDA & ANNA | Girl | |
| Idola | idolized | Girl | Greek |
| Idonia | industrious | Girl | German |
| Iggi | Only Son | Boy | African |
| Iggy | Form of IGGI. Only Son | Boy | Greek |
| Ignatius | Firey One | Boy | Latin |
| Ihsan | beneficence | Boy | Arabic |
| Ike | form of ISAAC - laughing one | Boy | Hebrew |
| Ilias | form of ELIJAH - Lord is my God | Boy | Latin |
| Ilona | beautiful | Girl | Hungarian |
| Iman | faith | Boy | Arabic |
| Imogene | image | Girl | Latin |
| Ina | Mother | Girl | Latin |
| Indeg | very fair (legendary heroine) | Girl | Welsh |
| Indira | India | Girl | Hindi |
| Ines | gentle | Girl | Spanish |
| Inez | Form of AGNES. chaste | Girl | Greek |
| Inga | hero's daughter | Girl | Scandinavian |
| Ingmar | famous son | Boy | Scandinavian |
| Ingram | Ing's raven | Boy | Teutonic |
| Ingrid | hero's daughter | Girl | Teutonic |
| Iola | Violet-Colored Dawn | Girl | Greek |
| Iolanthe | violet | Girl | French |
| Ion | Moon Man | Boy | |
| Iona | flower name | Girl | Greek |
| Ipo | sweetheart | Girl | Hawaiian |
| Iratze | in reference to the virgin Mary | Girl | Basque |
| Irene | peace | Girl | Greek |
| Iria | Form of IRIS. the rainbow | Girl | |
| Irina | Form of IRENE - peace | Girl | Russian |
| Iris | the rainbow | Girl | Greek |
| Irisa | Iris | Girl | |
| Irma | God of War | Girl | Latin |
| Irving | Handsome and Fair | Boy | Gaelic |
| Isa | form of JESUS - God will help | Boy | Arabic |
| Isaac | laughing one | Boy | Hebrew |
| Isabeau | consecrated to god | Girl | French |
| Isabel | consecrated to god | Girl | Spanish |
| Isabella | consecrated to god | Girl | Italian |
| Isabelle | consecrated to god | Girl | French |