Ko

A common suffix in female names, meaning 'child'.
Japan origin · Unisex name
87% boys13% girls
#1601US 2023
599Births / yr
Stable
78All-time births
📅 Since 198800
How to pronounce Ko
KOH
/ˈkoʊ/ · stress on KOH · 1 syllable
A common suffix in female names, meaning 'child'.
Japan origin · Unisex name

What does Ko mean and where does it come from?

In Japanese, Ko (子) is frequently used in female names, signifying 'child' and is often combined with other characters to create various meanings. In Korea, the name can also be phonetically approximated with diverse meanings based on the specific hanja chosen. Notably, Ko is often part of more comp

Cultural significance
Ko has been a cherished name across cultures, particularly in Japan-speaking communities, where it reflects values of a common suffix in female names, meaning 'child'..
Peak popularity
Reached #13329 in 1988 — currently #1601 in the US.
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Related Reading
Japan-origin baby names with timeless appeal
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What middle names flow best with Ko?

Ko works best with short, strong middle names — one or two syllables keep the full name from becoming a mouthful

Ko Grace
Most popular combo · classic
Ko Rose
Floral · soft ending
Ko Mae
Sweet · timeless
Ko Claire
French influence · crisp
Ko Jane
Literary · strong
Ko Skye
Modern · airy feel
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Middle Names
The best middle names for Ko
Browse ideas →

How popular is Ko right now?

Holding steady — currently #1601 in the US out of 135.5k tracked names

US Trend 20212023#1601 · Top 1.2%
2021
2022
2023
YearUS RankBirthsvs Prior Year
2023#1601599▲ up 5 · +3% births
2022#1606579▲ up 5 · +5% births
2021#1611549

The story of Ko

Ko is a relatively modern name, first appearing in US records in 1988. With 78 total births recorded, Ko remains relatively uncommon. The name has grown more popular over time, rising from #1611 in 2021 to #1601 in 2023. Ko is used for both genders: 13% female and 87% male.

Names that peaked alongside Ko in 1988:

Ko by decade

Ko peaked in the 1980s. See all 1980s names →

DecadeBirths
1980s15
1990s24
2000s5
2010s28
2020s6
💎Ko has only 78 total recorded births since 1988 — rarer than 99% of names in our database.

Common questions about the name Ko

What does the name Ko mean?
Ko means "A common suffix in female names, meaning 'child'." — a name rooted in Japan tradition that carries both historical depth and timeless appeal. The meaning reflects values that have made this name endure across generations.
How popular is the name Ko?
Ko is currently a distinctive and less common name as a baby name in the US and is holding steady in popularity, a reliable classic that parents consistently choose.
What is the cultural origin of Ko?
Ko originates from Japan tradition. Japan names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.
How do you pronounce the name Ko?
Ko is a one-syllable name pronounced K OW1. The pronunciation is straightforward for English speakers, and the name reads clearly on paper — an important practical consideration for parents.
How does Ko sound with different last names?
As a one-syllable name, Ko flows best with last names of two or three syllables. Avoid last names ending in the same sound as Ko ends, as this can create an unwanted rhyme. Test by saying the full name out loud several times.