How popular is the name Ko in 2025?

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

When was the name Ko most popular?

Ko peaked in 1990, reaching #6415 among US boy names.

Ko will almost certainly be the only one in school.

boy name

Ko entered the US charts in 1985, peaked at #6415 in 1990, is rarely given today — a rare gem few children share.

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rank today

#6415

peak (1990)

babies in 2025

rare

a rare gem few children share

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

The typical Ko alive today was born around 2010, making them about 15 years old.

Estimated from official SSA birth records and life tables.

How popular is the name Ko in 2025?: Ko is rarely given in the US today — it does not rank in the top 2000 boy names.
When was the name Ko most popular?: Ko peaked in 1990, reaching #6415 among US boy names.
Will my child share the name Ko with classmates?: Ko will almost certainly be the only one in school.

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