Boy · #7,224 in 2026

Kaisan

Kaisan (開山) is a Japanese term used in reference to the founder of a school of Buddhism or the founder of a temple, literally meaning "mountain opener" or "to open a mountain." Chan monasteries of China and Japan have traditionally been built in mountainous regions, with the name of whatever mountain it has been built upon then fixed upon the monastery as well as the founding abbot.

Current Rank
#7,224
Peak Rank
#6,293 (2020)
Total Babies
102
5-Yr Trend
-27%
2009
First Year
2024
Last Year
2020
Peak Year
#6293
Peak Rank
102
Total Count
13
Years Active

Meaning & Origin of Kaisan

What this name means, where it came from, and how it has traveled across cultures.

Kaisan (開山) is a Japanese term used in reference to the founder of a school of Buddhism or the founder of a temple, literally meaning "mountain opener" or "to open a mountain." Chan monasteries of China and Japan have traditionally been built in mountainous regions, with the name of whatever mountain it has been built upon then fixed upon the monastery as well as the founding abbot.

Source: Wikipedia (CC BY-SA 3.0). Read more →

The Story of Kaisan

The earliest SSA record of Kaisan as a baby boy name dates back to 2009, when 7 babies received it. 2020 was its biggest year on record, with 13 newborns named Kaisan — #6,293 in the national rankings. About 47% of every Kaisan on record arrived during the 2010s, its defining decade. Kaisan last appeared in the published SSA data in 2024, with 11 recorded births — it has not charted nationally since. All told, over 102 Americans have carried the name since 1880, from the 2000s to the 2020s.

Popularity Over Time

Popularity by State

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Top 10
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No data

Names that sound like Kaisan

Phonetically similar names — useful when Kaisan is the vibe but a different syllable count or letter feel might suit better. Linked entries have a profile on Peek a Name.

Source: Datamuse . Phonetic similarity ranking, not curated.

Frequently Asked Questions about Kaisan

What does the name Kaisan mean?
Kaisan (開山) is a Japanese term used in reference to the founder of a school of Buddhism or the founder of a temple, literally meaning "mountain opener" or "to open a mountain." Chan monasteries of China and Japan have traditionally been built in mountainous regions, with the name of whatever mountain it has been built upon then fixed upon the monastery as well as the founding abbot.
How popular is Kaisan in 2026?
In 2026, Kaisan ranks #7,224 among boys' names in the U.S., with 11 babies given the name that year.
When was Kaisan most popular?
Kaisan reached its peak popularity in 2020, ranking #6,293 that year with 13 babies given the name.
Is Kaisan a unisex name?
In U.S. Social Security records, Kaisan is primarily a boy's name. We don't have meaningful data for it as a girl's name.
What names go well with Kaisan?
Names that share a similar style or popularity range with Kaisan include Cas, Avish, Cyree. These pairings are based on rank proximity and naming era in U.S. data.

About the name Kaisan

Kaisan is a boy baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 2009 and has accumulated 102 births in the dataset. Kaisan's peak popularity came in 2020 when it ranked #6,293. Use the chart and map above to compare Kaisan's trajectory across years and U.S. states, or browse the related names section to discover similar choices.

Continue exploring

Data sources

  • Birth statistics (counts, ranks, years 1880–2026) — U.S. Social Security Administration . Predictions for years not yet released by SSA are computed by Peek a Name from historical trends; we update with official data as soon as it ships.
  • Etymology, cultural origins, and related forms — Behind the Name (used under their public API terms).
  • Meaning prose and editorial summary — Wikipedia article extracts, licensed under CC BY-SA 3.0 .
  • Predicted nationality distribution — Nationalize.io .
  • Phonetically similar names — Datamuse .

Peek a Name aggregates and presents the above data for informational purposes. Statistical predictions and external attributions are clearly labelled where shown; we make no guarantee of accuracy beyond what each source provides.