This is a list of the most common male names starting with the letter I, based on people currently estimated to be alive in the United States as of 2025.
| Name | People | Average Age |
|---|---|---|
| Isaac | 299,879 | 20.0 |
| Ian | 249,082 | 24.4 |
| Isaiah | 245,665 | 17.3 |
| Ivan | 122,867 | 25.5 |
| Israel | 64,845 | 23.9 |
| Ismael | 40,994 | 24.8 |
| Ira | 22,753 | 48.9 |
| Issac | 21,759 | 24.1 |
| Isiah | 19,379 | 28.4 |
| Iker | 18,800 | 8.5 |
| Isaias | 17,936 | 17.5 |
| Ibrahim | 17,683 | 13.5 |
| Irvin | 16,669 | 43.9 |
| Ignacio | 15,538 | 33.2 |
| Izaiah | 14,758 | 13.0 |
| Irving | 11,978 | 44.3 |
| Isai | 7,233 | 17.5 |
| Isidro | 6,730 | 33.7 |
| Immanuel | 6,033 | 16.9 |
| Ishmael | 5,657 | 24.3 |
| Ishaan | 5,420 | 10.3 |
| Idris | 4,949 | 13.1 |
| Ivory | 4,895 | 28.7 |
| Imran | 4,490 | 14.6 |
| Izayah | 4,229 | 13.4 |
| Isaak | 4,215 | 17.4 |
| Infant | 4,116 | 29.3 |
| Irwin | 3,999 | 57.3 |
| Ismail | 3,957 | 16.4 |
| Isreal | 3,713 | 30.8 |
| Ike | 3,491 | 38.6 |
| Ilan | 3,175 | 16.3 |
| Isael | 3,131 | 12.4 |
| Isa | 3,090 | 17.2 |
| Izaak | 2,843 | 18.1 |
| Iain | 2,824 | 24.9 |
| Izaac | 2,812 | 15.6 |
| Isac | 2,735 | 22.0 |
| Ishan | 2,708 | 14.2 |
| Issa | 2,249 | 15.0 |
| Ilyas | 2,179 | 9.3 |
| Izan | 1,991 | 4.2 |
| Ignatius | 1,914 | 25.2 |
| Iverson | 1,898 | 12.8 |
| Isacc | 1,894 | 24.2 |
| Izak | 1,817 | 17.5 |
| Izael | 1,677 | 4.9 |
| Ivaan | 1,584 | 4.0 |
| Ibraheem | 1,580 | 14.7 |
| Iman | 1,456 | 20.5 |
| Indiana | 1,433 | 12.0 |
| Ivy | 1,428 | 16.0 |
| Imani | 1,367 | 19.1 |
| Ioannis | 1,357 | 25.3 |
| Isaih | 1,350 | 23.6 |
| Issiah | 1,346 | 22.7 |
| Iziah | 1,307 | 17.2 |
| Izrael | 1,233 | 10.5 |
| Imanol | 1,230 | 18.9 |
| Iran | 1,218 | 34.0 |
| Indigo | 1,213 | 10.5 |
| Ivar | 1,110 | 11.8 |
| Isak | 1,092 | 17.3 |
| Ibrahima | 1,086 | 14.3 |
| Izaya | 1,074 | 15.8 |
| Imari | 1,067 | 20.8 |
| Isadore | 1,058 | 46.7 |
| Ikaika | 1,052 | 21.7 |
| Ilias | 1,009 | 12.4 |
| Iver | 1,007 | 16.8 |
| Ilya | 956 | 13.9 |
| Itzae | 935 | 5.8 |
| Iram | 901 | 19.2 |
| Ibn | 893 | 29.9 |
| Isabel | 891 | 24.7 |
| Isidoro | 852 | 44.5 |
| Indy | 841 | 6.8 |
| Isayah | 782 | 16.0 |
| Izac | 773 | 18.0 |
| Igor | 766 | 24.7 |
| Iven | 720 | 28.8 |
| Ikenna | 714 | 20.6 |
| Ivey | 702 | 23.9 |
| Ishaq | 701 | 11.5 |
| Irfan | 679 | 21.3 |
| Idrees | 675 | 9.9 |
| Islam | 675 | 21.4 |
| Isidore | 662 | 34.6 |
| Izik | 654 | 16.2 |
| Ihsan | 646 | 13.3 |
| Isaiha | 634 | 21.8 |
| Iann | 585 | 12.5 |
| Ilijah | 584 | 12.8 |
| Idan | 570 | 11.7 |
| Imad | 560 | 21.4 |
| Iam | 558 | 5.7 |
| Isom | 548 | 46.9 |
| Isrrael | 548 | 24.5 |
| Itai | 539 | 14.4 |
| Irie | 532 | 11.0 |