NameCensus.

UK boy's name

Kaien

A Japanese name meaning "ocean cove" or "bay of fire".

For 2026, the newest official UK baby-name figures on this page are from 2023. That release is the current official benchmark rather than a forecast.

Kaien is a boy's name in the UK records. People looking for Kaien popularity in 2026 should use the latest official release, which is 2023 in this profile. In that release it ranked #4991, with 3 babies registered with the name. Its strongest year in the published records was 2015, with 5 births.

This profile covers 25 England and Wales registrations across 7 recorded years from 2010 to 2023. The figures come from ONS England and Wales, so the page is a view of published baby-name registrations rather than a forecast or a live count of people using the name today.

The latest count is about 60% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 25 living people in the UK are called Kaien. This uses published birth registrations from England and Wales, Scotland and Northern Ireland, then applies ONS national life tables to estimate how many are likely still alive. It does not forecast extra births for 2024 or 2026.

Key insights

  • Kaien ranked #4991 for boys in England and Wales in 2023, with 3 registrations.
  • The name peaked in 2015, when 5 boys were registered as Kaien.
  • About 25 living people in the UK are estimated to have Kaien as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#4991

2023

Births in 2023

3

Latest year

Peak year

2015

5 births

Estimated living

25

2026

Meaning

What does Kaien mean?

The name Kaien is of Japanese origin, derived from the combination of the Japanese words "kai" meaning "ocean" and "en" meaning "bay" or "inlet." This name is closely associated with the coastal regions of Japan, where fishing and maritime activities have been an integral part of the culture for centuries.

One of the earliest recorded uses of the name Kaien can be traced back to the Heian period (794-1185 AD) in Japan. During this time, it was not uncommon for Japanese names to reflect the natural beauty and geographical features of the region, and Kaien was likely bestowed upon individuals born near or residing in coastal areas.

In Japanese folklore and literature, the name Kaien has been associated with tales of seafarers, fishermen, and those who lived in harmony with the ocean. Some ancient Japanese texts, such as the "Kojiki" (712 AD) and the "Nihon Shoki" (720 AD), may contain references to individuals bearing this name, although specific details are scarce.

One of the earliest recorded individuals with the name Kaien was a Japanese poet and calligrapher who lived during the Kamakura period (1185-1333 AD). While his exact birth and death dates are unknown, his works and calligraphic pieces are believed to have influenced the artistic styles of his time.

Another notable figure was Kaien Nakamura (1732-1817), a Japanese scholar and philosopher who made significant contributions to the study of Confucianism and Neo-Confucianism in Japan during the Edo period (1603-1868).

During the Meiji era (1868-1912), a Japanese naval officer named Kaien Yoshizawa (1848-1917) gained recognition for his military service and leadership during the Sino-Japanese War (1894-1895) and the Russo-Japanese War (1904-1905).

In the field of literature, Kaien Tsukada (1887-1954) was a prominent Japanese novelist and playwright known for his works that explored the societal changes and cultural shifts of early 20th century Japan.

Lastly, Kaien Nakazawa (1920-2005) was a Japanese artist and manga artist renowned for his powerful anti-war manga series "Barefoot Gen," which depicted the devastating effects of the atomic bombing of Hiroshima during World War II.

These individuals, spanning various eras and professions, have contributed to the rich cultural heritage associated with the name Kaien, solidifying its connection to the maritime traditions and artistic expressions of Japan.

Sourced from namecensus.com.

Popularity

Kaien over time

The chart below shows babies named Kaien registered in England and Wales in the years where the name appears in the published records, from 2010 to 2023. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.

For Kaien, the clearest high point is 2015. The latest England and Wales figure is 3 births in 2023, compared with 5 at the peak.

Babies born per year

Kaien
01345201020162023

Decades

Kaien by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Kaien was a short-lived spike or a name that stayed in regular use. Average rank is calculated only from years where a published rank exists.

Decade Average rank Total births Years covered
2020s #4991 3 1
2010s #4212 22 6

Related

Names similar to Kaien

FAQ

Kaien: questions and answers

How popular is the name Kaien in the UK right now?

In 2023, Kaien was ranked #4991 for boys in England and Wales, with 3 births registered.

When was Kaien most popular?

The peak year on record was 2015, with 5 babies registered as Kaien in England and Wales.

What is the meaning and origin of Kaien?

A Japanese name meaning "ocean cove" or "bay of fire".

How many people are called Kaien in the UK?

A total of 25 babies have been registered as Kaien across the 7 years of ONS England & Wales records shown here.

Which records is this page based on?

The England and Wales timeline uses ONS baby-name records. Scotland figures come from NRS and Northern Ireland figures come from NISRA. Counts are registrations in published baby-name files. The living estimate uses those birth registrations with ONS national life tables.