This is a list of the most common boy names starting with the letter I, based on babies born in the United States in the year 2021.
| Name | Births |
|---|---|
| Isaac | 6,907 |
| Isaiah | 5,673 |
| Ian | 4,270 |
| Ivan | 2,273 |
| Israel | 1,538 |
| Ismael | 919 |
| Ibrahim | 663 |
| Iker | 613 |
| Isaias | 597 |
| Izaiah | 508 |
| Issac | 411 |
| Ira | 298 |
| Idris | 271 |
| Ishaan | 271 |
| Ignacio | 223 |
| Imran | 207 |
| Ivaan | 168 |
| Isai | 167 |
| Izan | 162 |
| Immanuel | 159 |
| Isael | 155 |
| Isa | 151 |
| Ishmael | 142 |
| Isiah | 133 |
| Ilan | 131 |
| Izayah | 122 |
| Ismail | 120 |
| Izael | 118 |
| Ilyas | 98 |
| Irving | 94 |
| Ivar | 93 |
| Iverson | 90 |
| Irvin | 90 |
| Ishan | 89 |
| Issa | 84 |
| Ignatius | 83 |
| Indigo | 82 |
| Isidro | 82 |
| Iman | 81 |
| Itzae | 78 |
| Indiana | 74 |
| Iver | 67 |
| Isaak | 66 |
| Izrael | 60 |
| Imani | 58 |
| Ibraheem | 58 |
| Idrees | 58 |
| Indy | 57 |
| Izaak | 57 |
| Ike | 56 |
| Isreal | 52 |
| Izaac | 51 |
| Iroh | 45 |
| Izhaan | 44 |
| Ilya | 38 |
| Ilias | 36 |
| Imari | 34 |
| Ikaika | 34 |
| Ishaq | 34 |
| Izak | 34 |
| Ibrahima | 33 |
| Ioannis | 33 |
| Isac | 33 |
| Iziah | 31 |
| Isidore | 30 |
| Ioane | 29 |
| Izaan | 29 |
| Ivory | 28 |
| Idan | 28 |
| Ismaeel | 28 |
| Itzael | 28 |
| Izel | 25 |
| Indie | 24 |
| Izekiel | 24 |
| Ireoluwa | 24 |
| Iam | 24 |
| Iram | 23 |
| Isak | 23 |
| Iain | 22 |
| Iann | 22 |
| Izmael | 22 |
| Ivy | 21 |
| Irie | 21 |
| Islam | 20 |
| Imron | 20 |
| Iven | 20 |
| Ilay | 19 |
| Izyan | 19 |
| Ihsan | 19 |
| Ilijah | 19 |
| Izaya | 19 |
| Isadore | 19 |
| Izzy | 18 |
| Itai | 18 |
| Ikenna | 18 |
| Igor | 17 |
| Iniyan | 17 |
| Ivo | 17 |
| Iden | 17 |
| Ibrohim | 16 |