Boy Names Starting With I

8 US boy names beginning with I, each linking to scored middle, sibling and twin name pairings. Sorted A–Z; switch to popularity below.

I names by the numbers

About 1 in 54 US boys born in 2025 has a first name beginning with I: 31,505 boys, or 1.84% of the year's recorded births. That is up from 0.81% in 1990.

Most popular I names on this page
NameRank in 2015Rank in 2025
Isaac#31#47
Isaiah#49#57
Ian#76#83
Ivan#137#163
Ismael#401#263

Of these names, Ismael has moved up the most in ten years — #401 for boys in 2015, #263 in 2025.

On the middle-name pages, a middle name that also starts with I loses points. A doubled I in the initials is something some parents like and others avoid.

Boy Names starting with I

This page lists 8 boy names beginning with the letter I that are in real current use in the United States — including popular picks like Isaac, Isaiah, Ian. The count comes from US Social Security Administration public records: every name shown was given to at least a handful of US babies in the latest year, so this is not a list of invented or one-off spellings.

Open any name to see its pairing page — middle names, sibling names and twin names, each scored for how well it fits. Use the sort control above to switch between A–Z and 2025 popularity. To browse a different letter, go back to all boy names.