How popular is the name Isao in 2025?

Isao is rarely given in the US today — it does not rank in the top 2000 boy names.

When was the name Isao most popular?

Isao peaked in 1925, reaching #1745 among US boy names.

Isao will almost certainly be the only one in school.

boy name

Isao entered the US charts in 1915, peaked at #1745 in 1925, is rarely given today — a rare gem few children share.

—

rank today

#1745

peak (1925)

babies in 2025

rare

a rare gem few children share

Fewer than a hundred people named Isao are estimated to be alive in the US today — a true one-of-a-kind name.

The typical Isao alive today was born around 1923, making them about 102 years old.

Estimated from official SSA birth records and life tables.

How popular is the name Isao in 2025?: Isao is rarely given in the US today — it does not rank in the top 2000 boy names.
When was the name Isao most popular?: Isao peaked in 1925, reaching #1745 among US boy names.
Will my child share the name Isao with classmates?: Isao will almost certainly be the only one in school.

Put them head to head — full stats, history and a verdict.