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Kosei

Boy nameJapan origin#10145 in popularityTop 7.5% Rising fast — up 3091 spots

光生, meaning ‘light’ and ‘life’, representing brightness and vitality.

Meaning and Origin

Kosei is made of the kanji characters 光 (kō) meaning 'light' and 生 (sei) meaning 'life'. The name conveys a positive and vibrant aspect of existence, representing brightness and nurturing qualities. It is prevalent in Japan and is traditionally bestowed for good fortune and brightness in life. Depen

Kosei has been a cherished name across cultures, particularly in Japan-speaking communities, where it reflects values of 光生, meaning ‘light’ and ‘life’, representing brightness and vitality..

Popularity Over Time

+3091
Rank Change
vs. previous year
7
Babies Born
in 2020
+40%
Birth Rate Change
20192020
Top 7.5%
Popularity
out of 135.5k names
#13236
2019
#10145
2020
YearRankBirthsChange
2020#101457↑3091 rank · +40% births
2019#132365

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Frequently Asked Questions

What does the name Kosei mean?

Kosei means "光生, meaning ‘light’ and ‘life’, representing brightness and vitality." — 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 Kosei?

Kosei is currently a distinctive and less common name as a boy name in the US and is rapidly gaining popularity — searches for Kosei have increased significantly in recent years.

What is the cultural origin of Kosei?

Kosei 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.

Is Kosei trending right now?

Kosei is currently on the rise — it has gained significant momentum in recent years as parents discover its appeal.

Is Kosei a common or rare name?

Kosei is a distinctive choice that balances familiarity with individuality. It strikes a balance between standing out and fitting in.