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Rio

Girls 29% Boys 71% Recorded 1920-2025

Rio is given to both girls and boys: 105 girls and 563 boys were given it in 2025 (#1,877 among girls’ names and #532 among boys’, #938 among all names counting both); 7,812 Americans have been recorded with it since 1920 (Social Security Administration, published May 2026). Boys have outnumbered girls among babies named Rio every year since 2004.

An estimated 7,690 Americans named Rio and born in the U.S. are alive in 2026 (98% of everyone recorded); the median is 8 years old and half are between 3 and 19.

Babies named Rio each year, first recorded in 1920
Rio, 1920-2025; highest in 2024.2004006008001920194019601980200020252024 peak: 704
Rio, 1920-2025; highest in 2024.2004006008001920194019601980200020252024 peak: 704
Rio, 1920-2025; highest in 2024.2004006008001920194019601980200020252024 peak: 704
Rio, 1920-2025; highest in 2024.200400600800192019451970199520252024 peak: 704

Girls and boys together; gaps are years SSA did not record (fewer than 5 births).

Births of Rio by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.

What does Rio mean?

Wiktionary, English section

Rio is “a male given name.”

/ˈɹioʊ/

From Wiktionary, the free dictionary, entry Rio (English), CC BY‑SA 4.0. Quoted from the entry; text after a cross-reference to another sense is left out.

Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).

How popular is Rio?

#532 among boys’ names, 2025

Rio rose from #1,577 in 2015 to #532 in 2025 among boys’ names; its share of boys born rose from 0.05 to 0.33 per 1,000.

704 babies in 2024, the peak

Rio peaked in 2024, when 704 babies were given it (593 boys, #517 among boys’ names). The 668 births of 2025 (girls and boys) are 95% of that peak.

Girls and boys named Rio each year
Rio: girls and boys given the name each year200400600192019401960198020002025BoysGirls
Rio: girls and boys given the name each year200400600192019401960198020002025BoysGirls
Rio: girls and boys given the name each year200400600192019401960198020002025BoysGirls
Rio: girls and boys given the name each year200400600192019702025BoysGirls

Births by sex.

Rio by year and sex
YearGirlsGirls’ rankBoysBoys’ rank
2025105#1,877563#532
2024111#1,820593#517
2023106#1,887514#571
2022119#1,751530#560
2021124#1,679403#671
202091#2,047305#774
2019110#1,849193#1,061
201877#2,382172#1,126
201751#3,184132#1,358
201661#2,821136#1,323
Every recorded year (64)
YearGirlsGirls’ rankBoysBoys’ rank
201538#3,973103#1,577
201445#3,531104#1,547
201343#3,62897#1,600
201251#3,255100#1,586
201156#3,04099#1,576
201058#2,970110#1,490
200968#2,70077#1,882
200859#2,98878#1,871
200754#3,20580#1,826
200649#3,35867#2,005
200547#3,30659#2,103
200441#3,60564#1,924
200356#2,79049#2,222
200233#3,95252#2,082
200142#3,29948#2,174
200038#3,49862#1,774
199939#3,29540#2,292
199844#2,95450#1,948
199743#2,86142#2,118
199644#2,78445#1,977
199545#2,71646#1,878
199436#3,20439#2,109
199349#2,55938#2,113
199244#2,75934#2,242
199147#2,60542#1,883
199029#3,68835#2,113
198921#4,47330#2,278
198813#6,17030#2,121
198714#5,53823#2,446
198622#3,85419#2,760
198522#3,81219#2,683
198413#5,46122#2,346
198316#4,63616#2,885
1982under 57#5,492
1981under 513#3,372
1980under 512#3,569
1979under 510#4,015
1978under 515#2,897
1977under 511#3,555
1976under 58#4,332
1975under 513#3,042
1974under 513#2,910
1973under 58#3,977
1972under 56#4,859
1971under 58#3,887
1970under 55#5,292
1969under 510#3,023
1968under 56#4,045
1959under 55#4,458
1956under 55#4,357
1934under 55#4,114
19308#3,605under 5
1924under 55#4,835
1920under 55#4,838

Download Rio’s births by year (CSV)

Ranks: girls’ names and boys’ names ranked separately in each year’s SSA file; “under 5” is a year SSA did not list the name for that sex.

Is Rio a boy’s or a girl’s name?

Of the 7,812 Americans recorded as Rio, 29% are girls and 71% boys.

Share of girls among babies named Rio, by year
Girls fill from the bottom, boys from the top.100%50%0%192019401960198020002025Boys 84%Girls 16%
Girls fill from the bottom, boys from the top.100%50%0%192019401960198020002025Boys 84%Girls 16%
Girls fill from the bottom, boys from the top.100%50%0%192019401960198020002025Boys 84%Girls 16%
Girls fill from the bottom, boys from the top.100%50%0%192019702025Boys 84%Girls 16%

Years with fewer than 20 babies given the name are left blank.

Girls and boys named Rio: the SSA national file counts each sex separately.

How many people are named Rio, and how old are they?

7,690 alive in 2026, estimated

That is 98% of the 7,812 Americans ever recorded as Rio. The median Rio alive today is 8 years old; half are between 3 and 19.

The 2020 Census counted 4,560 people named Rio (1,792 women and girls, 2,768 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 4,268 born in the U.S. The Census count is 7% above that prediction.

Alive today, by age

Women and girlsMen and boys
190-991
080-890
070-793
060-694
050-5968
7140-49134
33530-39347
42720-29522
52910-19975
8890-93,380

Alive today, by generation

By generation
GenerationBornAlive
Silent Generation1928-19451
Baby Boomers1946-19647
Generation X1965-1980112
Millennials1981-1996842
Generation Z1997-20121,830
Generation Alpha2013-20254,890

An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.

Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).

Where are babies named Rio born?

The states with the most babies named Rio are California, New York and Texas, with 45% of its births recorded by state in 2025.

States with the most births: girls and boys together; rank among boys’ names in the state in 2025
StateBirths 2025Rank, boysvs. national
California143#3161.8×
New York63#3580.8×
Texas59#5930.6×
Florida58#3370.8×
Washington23#4931.0×
Illinois20#5090.5×
Arizona19#4080.8×
Utah18#4030.7×
New Jersey16#6420.3×
North Carolina15#6360.3×

Where Rio is more common than its national share predicts

Relative to its national share, Rio is most over-represented in California: since 1920 it was given 1.8 times as often there as its national share each year would predict.

Bars start at 1× (as often as the national share predicts).

States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among boys’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Rio with the births its national share predicts year by year, for states with at least 100 births of the name.

Names spelled alike

Of these 5 names spelled alike, given to 11,982 babies since 1880, Rio is the most given (65% of them). In 2025 it was given to 668 of their 840 babies (80%), again the most given.

Rio and the names spelled alike
NameSince 1880Births 2025Peak year
Rio7,8126682024
Ryu1,690592012
Rye1,236642020
Ryo827492024
Ry417under 51992

Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.

Names that rose and fell in the same decades as Rio

Names whose births rose and fell across the same decades, measured on each decade’s share of births.

NameRecorded1920-2025
Ocean8,233
Jireh3,202
Azriel4,686
Shai4,340
Ren3,634
Zen3,313

Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.

More about Rio and names like it

  1. Compare Rio and RyuBirths, ranks, peak and the living estimate side by side.
  2. The most given names of the 2020sRio peaked in 2024.
  3. California’s most given namesThe state where SSA recorded the most babies named Rio since 1910.
  4. The top names of 2024The year the most babies were named Rio.
  5. The names of Generation AlphaMost people named Rio alive today were born 2013-2025.
  6. Names starting with RMost given first.

Compare Rio with another name