NameCensus.

UK name, mostly girls

Mio

A feminine Japanese name meaning "beautiful cherry blossom".

For 2026, the newest official UK baby-name figures on this page are from 2021. That release is the current official benchmark rather than a forecast.

Also recorded as a boys' name in the UK, with 28 boys.

Mio is mostly registered for girls in the UK records. People looking for Mio popularity in 2026 should use the latest official release, which is 2021 in this profile. In that release it ranked #4634, with 4 babies registered with the name. Its strongest year in the published records was 2009, with 7 births.

This profile covers 42 England and Wales registrations across 10 recorded years from 1998 to 2021. 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 57% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 42 living people in the UK are called Mio. 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 2022 or 2026.

Key insights

  • Mio ranked #4634 for girls in England and Wales in 2021, with 4 registrations.
  • The name peaked in 2009, when 7 girls were registered as Mio.
  • Mio is also recorded for boys, but the girls side is the larger UK variant in these records.
  • About 42 living people in the UK are estimated to have Mio as a first name, after adjusting past birth registrations with ONS life tables.
  • Across the England and Wales records shown here, 60.0% of Mio registrations are for girls.

Latest rank (E&W)

#4634

2021

Births in 2021

4

Latest year

Peak year

2009

7 births

Estimated living

42

2026

Gender

Boy and girl registrations for Mio

In England and Wales birth records, Mio has been registered for both boys and girls. Across the years shown here, 40.0% of registrations are for boys and 60.0% are for girls.

These figures use the sex categories in the published baby-name files. They are useful for spotting how the name is used at registration, but they are not a live measure of gender identity or everyone living with the name today.

40% boys
60% girls
Boys28 (40.0%)Girls42 (60.0%)

Mio registered for boys

  • Ranked #4,270 in 2024
  • 4 boys registered in 2024
  • Peak: 2017 (5 births)

Mio registered for girls

  • Ranked #4,634 in 2021
  • 4 girls registered in 2021
  • Peak: 2009 (7 births)

Meaning

What does Mio mean?

The name Mio is believed to have originated from the Italian language, derived from the Latin word "meus," meaning "mine." It was initially used as a term of endearment or a possessive pronoun, expressing a sense of belonging or ownership.

In the early centuries, the name Mio became popular across various regions of Italy, particularly in the northern regions. Its widespread usage can be traced back to the Renaissance period, when Italian culture and arts flourished, influencing various aspects of society, including naming conventions.

One of the earliest recorded instances of the name Mio can be found in the literary works of the renowned Italian poet Dante Alighieri, who lived from 1265 to 1321. In his masterpiece, the Divine Comedy, Dante used the term "mio" as a form of address or endearment, reflecting the name's affectionate connotations.

Throughout history, several notable figures have borne the name Mio. One such individual was Mio da Siena, an Italian painter and sculptor from the 13th century, known for his contributions to the Sienese School of art. Another notable figure was Mio Costantini, an Italian architect and engineer who lived from 1876 to 1965 and was renowned for his innovative architectural designs.

In the realm of literature, Mio Tsukushi was a Japanese novelist and poet who lived from 1910 to 1938. Her works explored themes of modern urban life and the experiences of women in Japan during the early 20th century.

Moving to the world of sports, Mio Mutonono was a Japanese swimmer who participated in the 2008 and 2012 Summer Olympics, specializing in freestyle and butterfly events.

Beyond these examples, the name Mio has also been used as a character name in various literary works, films, and television series, contributing to its enduring popularity and cultural significance across different regions and artistic expressions.

Sourced from namecensus.com.

Popularity

Mio over time

The chart below compares boys and girls registered as Mio in England and Wales, from 1998 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 Mio, the clearest high point is 2009. The latest England and Wales figure is 4 births in 2021, compared with 7 at the peak.

Babies born per year

BoysGirls
02457199820112024

Decades

Mio by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Mio 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 #5064 7 2
2010s #5006 19 5
2000s #3214 13 2
1990s #3848 3 1

Related

Names similar to Mio

FAQ

Mio: questions and answers

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

In 2021, Mio was ranked #4634 for girls in England and Wales, with 4 births registered.

When was Mio most popular?

The peak year on record was 2009, with 7 babies registered as Mio in England and Wales.

What is the meaning and origin of Mio?

A feminine Japanese name meaning "beautiful cherry blossom".

How many people are called Mio in the UK?

A total of 42 babies have been registered as Mio across the 10 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.