boy's name

Kaisen

KY-sen (English)

  • Gender Boy
  • Syllables 2
  • Letters 6
  • Popularity Top 1000 (US)
  • Births on record 2,752

the United States

#803

2025 births

Kaisen is a boy's name with 2 syllables. In 2025 it was given to 311 babies in the United States, ranking #803. It ranks among the top 1,000 names in the United States.

  • Peaked in 2025, when 311 babies were given the name.
  • It has been rising over the past decade.
  • Today about 1 in 10,660 babies in the United States is given this name.
  • First appears in US birth records in 2004.
  • 2 syllables, with the stress on syllable 1.

Kaisen Over Time

Births per decade in the United States, 2000s to 2020s. The striped bar is the 2020s, which so far covers 2020 to 2025.

1,479
'00 '10 '20
Show the numbers
Births named Kaisen by decade in the United States
Decade Births
2000s 129
2010s 1,029
2020s (to 2025) 1,479

How Popular Is Kaisen?

In 2025, Kaisen was given to 311 babies in the United States, ranking #803 that year. It ranks among the top 1,000 names in the United States.

Where Kaisen Is Used

United States #803 311 in 2025
Canada #1,942 11 in 2024
England & Wales #4,233 5 in 2025

The bar shows how near the top of each country's list the name sits, on a scale where #1 fills the row and #1,000 is a sliver. The figures beside it are the real rank and the babies recorded that year.

US figures omit any name given to fewer than five babies in a year, so the rarest names are absent from the source rather than absent from use. Data & sources.

Names That Peaked Alongside Kaisen

These names rose and fell in the same era, which is why they tend to sound like they belong together.

Parents Who Like Kaisen Also Like

Names whose popularity has risen and fallen in step with Kaisen over the last century — the same taste, a different name.

How to Say Kaisen

  • English KY-sen

Sibling Names for Kaisen

Names from the same era that do not rhyme or share an initial with Kaisen — the two things that make a sibling set grate.

Common Questions About Kaisen

How popular is the name Kaisen?

In 2025, Kaisen was given to 311 babies in the United States, ranking #803 that year. It ranks among the top 1,000 names in the United States.

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

Kaisen is given almost entirely to boys in birth records.

How many syllables are in Kaisen?

Kaisen has 2 syllables.

When was Kaisen most popular?

Kaisen peaked in 2025, when 311 babies were given the name. It has been rising over the past decade.

Is Kaisen a good name?

That is not something records can settle, but they can tell you what you would be choosing. Kaisen currently ranks #803 in the United States. It has been rising over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.