Kosi

A boy's name of African origin with 12 recorded U.S. births.

Boy's nameRare nameNot ranked recently

Meaning & Origin

At 4 letters and two syllables, Kosi is short enough to fit easily on forms, monograms, and classroom labels — no abbreviation needed. It has been used as a boy's name in the U.S. since 2004, with 12 total recorded births.

Kosi is not in the current top 1,000, which means your child is unlikely to share the name with a classmate — a plus for parents who value distinctiveness.

Kosi is not in the current top 1,000 boy names nationally, making it an uncommon choice — though your state or community may differ.

Kosi is a boy's baby name of African origin meaning 'born on Sunday' in Ewe, the language of West African coastal peoples in Ghana and Togo.

EtymologyShow more

The ending of a name often carries more etymological information than the beginning. Kosi's final sounds are open, approachable — ending on a vowel softens the overall impression. In English-language naming, masculine names frequently end on harder consonants or closed syllables, creating a sense of decisiveness and strength. Kosi softens that pattern, giving it a more versatile feel.

Explore the ending-based name pages on this site to find names that share Kosi's suffix pattern — names with similar endings often share a style and era, even when they come from different linguistic backgrounds.

At a Glance

Total births

Since 2004

2004

Peak

7 births

2004

First recorded

12 years of data

Compare Kosi with another name

Popularity Over Time

Kosi has 2+ years of history in the U.S., first appearing in 2004.

First appeared: 2004Peak: 2004 (7 births)

Popularity by Decade

Decade-by-decade popularity data for Kosi
Decade	Births	Avg Rank	Trend
2010s	5	#13178	▼
2000s	7	#9511	—

The Story of Kosi

A Gen Z name

Peaking in 2004, Kosi is a name that defines a generation. Boys named Kosi are most likely born between 2004 and 2014.

How rare is Kosi?

With fewer than 500 recorded births, Kosi is an exceptionally rare name — a one-of-a-kind choice.

The journey through the decades

First appeared in the records in 2004, peaked in the 2000s with 7 births that decade, and remains solidly popular today.

Year-by-Year Data

View complete yearly data(2 years, 2004–2015)

Year-by-year popularity data for the name Kosi
Year	Births	Rank	Change
2015	5	#13178	-2 (-28.6%)
2004	7	#9511	—

Source: U.S. Social Security Administration. Showing years with 5+ recorded births.

Frequently Asked Questions

Is Kosi a boy's or girl's name?

Kosi is primarily a boy's name.

When was Kosi most popular?

Kosi reached its peak popularity in 2004 with 7 births that year. It is not currently in the top rankings.

How popular is the name Kosi?

Kosi is not currently in the top rankings but has been given to 12 babies in the U.S. since 2004. Its peak was in 2004.

Explore More

By Length4-letter names By OriginAfrican names By EndingNames in -i TrendingRising names RankingsFull rankings

Data source: U.S. Social Security Administration, 2004–2015