Taisei
Meaningoften great achievement · Japanese
Taisei is a Japanese boy name often meaning “great achievement”. In Japan, parents often choose a name as much for the kanji characters behind it as for its sound, so the same name can carry several shades of meaning. A meaning like this gives a child something to grow into, and a good story to tell when someone asks about their name. It sounds soft and friendly, it's simple to spell and say, and it pairs well with middle names of almost any length.
Did you know?
- GenerationTaisei peaked in 2013, which makes it a Gen Alpha name. The typical Taisei you'd meet today is about 12 years old.
- HistoryTaisei first shows up in US birth records in 1999, the first year at least 5 babies got it. It has been in use for 26 years since.
US births per million boys, 1999–2025
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Popularity: U.S. Social Security Administration (babies with 5+ births per year).
About the name Taisei
Taisei is a boy name of Japanese origin meaning “often great achievement”. Its two syllables give it an easy rhythm, and the open vowel at the end makes it sound soft and warm. It's a fresh, modern name that only arrived in US birth records in recent decades. It's rarely heard today, so it stands out while still being a real, established name.
Origin:Japanese names
More Japanese boy names
- Unisex name: Asa · healer
- Unisex name: Rio · river
- Unisex name: Akari · light, brightness
- Boy name: Kenzo · often healthy third son
- Boy name: Kenji · often strong second son
- Unisex name: Ren · often lotus
- Unisex name: Zen · meditation
- Unisex name: Mars · god of war
Questions about the name Taisei
What does the name Taisei mean?
Taisei means “often great achievement” and comes from Japanese. Other boy names with a similar meaning include Manal (“achievement”) and Isao (“merit, achievement”).
What is the origin of the name Taisei?
Taisei is Japanese in origin. Other Japanese names to consider are Asa (“healer”), Rio (“river”), Akari (“light, brightness”) and Kenzo (“often healthy third son”).
Is Taisei a boy or girl name?
Taisei is a boy name.
How popular is the name Taisei?
Taisei is rare: fewer than 5 US boys got it in 2025, and it was last given to 5 or more in 2023. It peaked at #6,603 in 2013, so it's a name with history that few kids share today.
What names are similar to Taisei?
If you like Taisei, you might also like Manal and Isao.
What should I know before naming my baby Taisei?
Taisei is a Japanese boy name often meaning “great achievement”. In Japan, parents often choose a name as much for the kanji characters behind it as for its sound, so the same name can carry several shades of meaning. A meaning like this gives a child something to grow into, and a good story to tell when someone asks about their name. It sounds soft and friendly, it's simple to spell and say, and it pairs well with middle names of almost any length. Say it out loud with your last name and any middle names you're considering, and check the initials it makes.