NameCensus.

UK boy's name

Koji

An archaic masculine Japanese name meaning "student of the way".

For 2026, the newest official UK baby-name figures on this page are from 2024. That release is the current official benchmark rather than a forecast.

Koji is a boy's name in the UK records. People looking for Koji popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #4270, with 4 babies registered with the name. Its strongest year in the published records was 2020, with 5 births.

This profile covers 28 England and Wales registrations across 7 recorded years from 2009 to 2024. 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 80% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 28 living people in the UK are called Koji. 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 2025 or 2026.

Key insights

  • Koji ranked #4270 for boys in England and Wales in 2024, with 4 registrations.
  • The name peaked in 2020, when 5 boys were registered as Koji.
  • About 28 living people in the UK are estimated to have Koji as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#4270

2024

Births in 2024

4

Latest year

Peak year

2020

5 births

Estimated living

28

2026

Meaning

What does Koji mean?

The name Koji has its origins in the Japanese language and culture. It is derived from the Japanese verb "kōju" which means "to be born" or "to give birth." The name itself can be broken down into two kanji characters: "ko" meaning "child" and "ji" meaning "next" or "future."

In Japanese Buddhist tradition, the name Koji is sometimes associated with the deity Kojin, who is believed to protect children and ensure safe childbirth. The name may have been given to children as a way of seeking divine protection and blessings.

One of the earliest recorded instances of the name Koji dates back to the Heian period (794-1185 AD) in Japan. During this time, it was not uncommon for Japanese names to be inspired by Buddhist teachings and concepts.

Throughout history, there have been several notable individuals who bore the name Koji. One of the earliest was Koji Miura (1538-1599), a Japanese samurai and daimyo (feudal lord) who played a significant role in the Sengoku period (1467-1615).

Another notable Koji was Koji Nagai (1908-1956), a Japanese novelist and poet who was active during the Showa period. His works often explored themes of social injustice and the human condition.

In the realm of sports, Koji Murofushi (born 1974) is a Japanese hammer thrower and Olympic gold medalist. He won gold medals at the 2004 Athens Olympics and the 2011 World Championships.

Koji Nakanishi (1925-2015) was a Japanese-American chemist and professor at Columbia University. He made significant contributions to the field of organic chemistry and natural product synthesis.

Koji Kondo (born 1961) is a Japanese video game composer and sound director, best known for his work on the Super Mario and The Legend of Zelda series. His compositions have become iconic in the world of video game music.

These are just a few examples of the many individuals throughout history who have carried the name Koji. While the name has its roots in Japanese culture, it has also gained recognition and popularity in other parts of the world.

Sourced from namecensus.com.

Popularity

Koji over time

The chart below shows babies named Koji registered in England and Wales in the years where the name appears in the published records, from 2009 to 2024. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.

For Koji, the clearest high point is 2020. The latest England and Wales figure is 4 births in 2024, compared with 5 at the peak.

Babies born per year

Koji
01345200920162024

Decades

Koji by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Koji 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 #3645 19 4
2010s #4725 6 2
2000s #4527 3 1

Related

Names similar to Koji

FAQ

Koji: questions and answers

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

In 2024, Koji was ranked #4270 for boys in England and Wales, with 4 births registered.

When was Koji most popular?

The peak year on record was 2020, with 5 babies registered as Koji in England and Wales.

What is the meaning and origin of Koji?

An archaic masculine Japanese name meaning "student of the way".

How many people are called Koji in the UK?

A total of 28 babies have been registered as Koji 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.