USA Facts and Figures Homepage

Letter I Boy Baby Names 2026

Isaac, Isaiah, and Ian top the list for 'I' initial boy names.

NameNumber of Births
Isaac5,953
Isaiah5,267
Ian3,924
Ivan2,240
Ismael1,307
Israel1,081
Ibrahim939
Iker815
Isaias755
Izaiah439
Idris391
Izael336
Ira301
Ignacio298
Izan269
Ishaan266
Issac258
Isa253
Imran237
Isael231
Ivaan215
Ismail204
Ilyas200
Isai186
Immanuel168
Ivar133
Iverson129
Ilan124
Ishmael121
Isiah120
Indigo113
Ignatius100
Iam98
Issa98
Irving90
Izayah90
Iman89
Isidro88
Ishan84
Irvin80
Izhaan79
Iver66
Ilias60
Indiana60
Indy58
Ilian57
Idrees56
Ilia56
Izrael56
Ike55

According to the provided data for 2025, Isaac stands out as the most popular boy baby name starting with the letter I in the United States, with a significant 5,953 births. Following closely in popularity are Isaiah, securing the second spot with 5,267 births, and Ian, completing the top three with 3,924 births. Beyond these leading names, there's a noticeable drop in frequency, with names like Ivan (2,240), Ismael (1,307), and Israel (1,081) also demonstrating considerable popularity among the I-starting names, while a vast array of other unique and traditional options follow with fewer births.

Data Source: USA Social Security Administration