Baby Names Starting With I

I is the 16th most common starting letter for baby names in the US — 2.4% of babies given a top-1,000 name have one. Isabella and Isaac lead the way.

How popular is the letter I?

Measured across every name in the 2025 SSA top 1,000 lists.

#16
of all 26 letters
2.4%
of babies named
41
names in the top 1,000

I names rising fastest

Already in the top 1,000 and still climbing — the I names gaining ground.

Where I names come from

Origins of the I names in the top 1,000. Hebrew leads with 21.

All baby names starting with I

Baby names starting with I: common questions

What is the most popular baby name starting with I?

Isabella is the most popular girls' name starting with I (#7 in the US), and Isaac is the most popular boys' name (#47), based on 2025 Social Security Administration data.

How common are baby names starting with I?

I is the 16th most common starting letter for baby names in the US. 62,559 babies — 2.4% of those given a top-1,000 name in 2025 — received a name beginning with I, across 41 different names.

Which I names are getting more popular?

Iris, Ismael, Ibrahim, Itzel, Ivory are all in the top 1,000 and climbing in national popularity.

Where do I baby names come from?

Among I names in the top 1,000, the most common origins are Hebrew (21 names), Spanish (13 names), Arabic (6 names).

Explore More Names