NameCensus.

UK girl's name

Mariko

A feminine Japanese name meaning "true child" or "true reason".

For 2026, the newest official UK baby-name figures on this page are from 2003. That release is the current official benchmark rather than a forecast.

Mariko is a girl's name in the UK records. People looking for Mariko popularity in 2026 should use the latest official release, which is 2003 in this profile. In that release it ranked #4373, with 3 babies registered with the name. Its strongest year in the published records was 2003, with 3 births.

This profile covers 3 England and Wales registrations across 1 recorded years from 2003 to 2003. 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.

Mariko is at its recorded peak in the England and Wales series.

We estimate that about 3 living people in the UK are called Mariko. 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 2004 or 2026.

Key insights

  • Mariko ranked #4373 for girls in England and Wales in 2003, with 3 registrations.
  • The name peaked in 2003, when 3 girls were registered as Mariko.
  • About 3 living people in the UK are estimated to have Mariko as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#4373

2003

Births in 2003

3

Latest year

Peak year

2003

3 births

Estimated living

3

2026

Meaning

What does Mariko mean?

The name Mariko originates from Japan and is a feminine Japanese given name. It is a combination of the Japanese elements "mari" meaning "true, real, genuine" and "ko" meaning "child". Mariko can be translated to mean "the genuine child" or "the truthful child".

The name has been in use for centuries in Japan, with its earliest recorded examples dating back to the Heian period (794-1185 CE). During this time, Mariko was a popular name among the aristocratic class and was often given to daughters of noble families.

In Japanese literature and poetry, the name Mariko has been mentioned in various works from the Heian period onwards. One notable example is the Tale of Genji, a classic work of Japanese literature written in the early 11th century by Murasaki Shikibu, which features a character named Mariko.

Throughout Japanese history, there have been several notable women who bore the name Mariko. One of the earliest recorded was Mariko Hōjō (1155-1225), a powerful woman who served as the de facto ruler of the Kamakura shogunate for a brief period in the early 13th century.

Another famous Mariko was Mariko Okada (1842-1916), a pioneering educator and women's rights activist who founded one of Japan's first schools for women in the late 19th century.

In the 20th century, Mariko Miyagi (1932-2014) was a renowned Japanese novelist and playwright whose works explored themes of family, identity, and the complexities of modern Japanese society.

Mariko Mukai (born 1952) is a Japanese astronaut and the first Japanese woman to go into space, having spent over 600 hours in space during her two missions on the Space Shuttle and International Space Station.

Mariko Mori (born 1967) is a contemporary Japanese artist known for her multimedia installations and performances that explore themes of technology, spirituality, and the future.

The name Mariko has remained a popular choice for Japanese parents, as it carries a sense of tradition and cultural significance while also having a beautiful and meaningful etymology.

Sourced from namecensus.com.

Decades

Mariko by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Mariko 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
2000s #4373 3 1

Related

Names similar to Mariko

FAQ

Mariko: questions and answers

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

In 2003, Mariko was ranked #4373 for girls in England and Wales, with 3 births registered.

When was Mariko most popular?

The peak year on record was 2003, with 3 babies registered as Mariko in England and Wales.

What is the meaning and origin of Mariko?

A feminine Japanese name meaning "true child" or "true reason".

How many people are called Mariko in the UK?

A total of 3 babies have been registered as Mariko across the 1 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.