US rank #6744 Unisex name Peak 2020 333 births

Mio — #6744 US unisex name

333 babies named Mio in U.S. Social Security records since 1988, with the highest year being 2020. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1980s51990s232000s872010s1432020s75
#6744
of 17,661 girls in use

More common than 62% of names given to girls today.

2010s
Peak decade

43% of everyone ever named Mio was born in this single decade.

2020
Single peak year

21 babies were named Mio in 2020 — its busiest year on record.

What the Data Says About Mio

The Social Security Administration has registered 333 babies named Mio between 1988 and 2024, spanning 37 consecutive years of U.S. birth records. As a girl's name, Mio currently holds the #6744 rank among girls for 2024. The name reached its historical peak in 2020, when 21 babies received it in a single year. Mio is classified as unisex in SSA records: the opposite-sex variant accounts for 104 additional births since 2007.

Decade-level aggregation shows that Mio performed strongest in the 2010s, accumulating 143 births during that ten-year window. Across the 5 decades of recorded activity, Mio shows notable generational variation in parental adoption. Geographically, the name is most concentrated in California, which accounts for 28 births — the largest state-level total in the dataset — followed by . In total, SSA state-level files list Mio in 1 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Mio in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 333 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.

Mio at a glance

Outside the top 1,000

Total births

333

Since 1988

37 years of records

Peak year

2020

21 births that year

Strongest decade: 2010s

Current rank

#6,744

Among girls

As of 2024

Active since

1988

Recorded for 37 years

Last year on file: 2024

Mio popularity over time — girls

Annual U.S. births registered with the Social Security Administration · 2024–1988

Outside the top 1,000
Peak year (2020)
21
Annual births at peak — across 37 years of records
0510152025 20242020201620122008200419991988 5

Mio popularity over time — boys

104 total births recorded since 2007 (Mio as boys' name)

Unisex variant — 104 births
46810121416 2023202120192017201520102007 5

Mio by decade

Total births in each ten-year window — peak vs trough at a glance

Peak: 2010s
Peak decade
2010s
143 births that decade — 43% of Mio's all-time total
1980s51990s232000s872010s1432020s75

Mio by state

Where Mio concentrates geographically — total births since 1988

Geographically diffuse
Top 1 states by recorded births for the name Mio
Rank State Visual share Births Share of total
#1 California
28 8.4%
California share of Mio's total US births 8.4%

28 of 333 births nationwide.

Frequently Asked Questions

How popular is the name Mio?
333 babies have been named Mio since 1988. It currently ranks #6744 among girls. The peak year was 2020 with 21 births.
When was Mio most popular?
Mio was most popular in the 2010s decade with 143 total births. The single peak year was 2020.
Where is Mio most popular?
The top states for the name Mio are California (28 births).
Is Mio a unisex name?
Yes, Mio is used for both boys and girls. As a girl's name it has 333 births, and as a boy's name it has 104 births.
How long has the name Mio been used?
Mio has been recorded in Social Security data since 1988, spanning 37 years of data through 2024.
What names are similar to Mio?
Names with a similar sound or spelling include Mionna, Miosha, Miosotis, Miona, and 4 more. These share a common prefix and are also used for girls.

Data Sources

Data as of 2024. Source: U.S. Social Security Administration (SSA).

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1988–2024 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.

State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.