Rio
Rio is a boy's name that peaked in 2024, when it was the 517th most popular in the United States. It is given to both boys and girls. In 2025 it ranked 532nd. About 7,700 Rios are alive in the United States today, and half of them are over 7.
Popularity, 1880–2025
girls named Rio boys named Rio
Girls and boys called Rio
years more girls than boys years more boys than girls
Both, throughout, without either side ever taking it over: 2,282 girls and 5,530 boys in all, and in 2025 the split was 105 to 563.
The girls’ share of each year’s babies of the name, in the 43 years in which at least 25 babies got it. The line touches the middle more often than there are crossings marked: a year or two on the other side is not a name changing hands, and only a move that holds for 5 counted years and reaches 60/40 is recorded as one. All 581 names that changed sex.
By the numbers
- Total US births
- 7,812
- Estimated living today
- 7,700
- Median age today
- 7
- Peak year
- 2024
- Best rank
- 517th
- Rank in 2025
- 532nd
- First recorded
- 1920
- Girls / boys
- 2,282 / 5,530
How old the living Rios are
born that year still alive today
Of the 7,812 babies given the name since 1920, about 7,700 are alive — 99 in every hundred. Roughly 5,600 of them are children and 9 are 65 or over. The dotted line is the median: half were born before 2018 and half after.
An estimate, not a count. SSA births aged forward through SSA cohort life tables, which know nothing about who left the country or arrived in it — so for a name that mostly came to America rather than being born in it, this is a floor rather than a figure. Where you fall among living Americans.
Notable Rios
- Rio Ferdinand (born 1978)English association football player
- Rio Mavuba (born 1984)French footballer
- Rio Ngumoha (born 2008)English association football player
- Rio Omori (born 2002)Japanese association football player
- Rio Uchida (born 1991)Japanese model, fashion model and actress
- Rio Reiser (1950–1996)German rock musician
People named Rio with articles in the most Wikipedia languages. Data from Wikidata (CC0).
Where Rio is most common
Relative to how many babies each state records, Rio is most concentrated in California (3.8×), Arizona (2.3×), Florida (2.2×), Washington (2.2×).
Total births recorded in each state since 1910. Browse names by state.
Names of 2024
The most popular boys’ names the year Rio peaked:
Rio elsewhere
| Country | Spelling | Births | Best rank |
|---|---|---|---|
| England and Wales boys | Rio | 6,872 | 160th |
| England and Wales girls | Rio | 807 | 478th |
| Scotland boys | Rio | 592 | 103rd |
| France boys | Rio | 320 | 887th |
| Switzerland boys | Rio | 236 | 217th |
| Northern Ireland boys | Rio | 223 | 121st |
| Ireland boys | Rio | 186 | 250th |
| Italy boys | Rio | 152 | — |
| Belgium boys | Rio | 105 | 461st |
| Scotland girls | Rio | 54 | 409th |
| France girls | Rio | 25 | 4,926th |
| Belgium girls | Rio | 15 | 786th |
| Ireland girls | Rio | 4 | 747th |
| Poland boys | Rio | 4 birth registrations | 779th |
Counts come from each country's own records and are not comparable with the US figures above, which cover different years and a different definition of a recorded name. Where a country writes the name several ways, the spellings are added together and the most common is shown. A row marked name registrations is counting something else: Portugal ranks each of a child's two given names separately, so a girl registered Maria Leonor is in both the Maria row and the Leonor row, and that figure is not a number of children.
Rio: births by region
| Region | Country | Spelling | Births | Share of the region | Best rank |
|---|---|---|---|---|---|
| German boys | Switzerland | Rio | 210 | 0.017% | 176th |
| French boys | Switzerland | Rio | 22 | 0.005% | 353rd |
| Italian boys | Switzerland | Rio | 4 | 0.006% | 112th |
Parts of a country counted above, not extra births. The share is what makes the regions comparable: they differ in size by a factor of three hundred.
By canton, Rio is most concentrated in Zurich, where 0.02% of children were given it – 79 of them.
Rio: rank by region
In 2025, Rio was given 5 times or more in 2 regions of Belgium.
| Region | Spelling | Place | Children |
|---|---|---|---|
| Flanders | Rio | 376 | 15 |
| Flanders | Rio | 584 | 8 |
In 2025, with the country taken in 11 areas rather than 3, Rio appears in the lists for Province of Limburg (132nd) and Province of East Flanders (226th).
Each of these is the top of a list the statistics office cut off somewhere – Belgium below 5 children – and published nothing after. So a region missing here is one where the name fell outside what was published, not one where it went unused. Places are shared where names tie, and the further down a list a place is, the more names can share it.
Rio by city
| City | Years | Births | Best rank |
|---|---|---|---|
| Berlin boys | 2017–2023 | 200 | 59th |
One city over a few years, so these are much smaller numbers than the national ones above and not comparable with them.
Rio among the living
How many people each country's register counts under the name, rather than how many were given it in any one year. Each register was read on one date, and they are not the same date.
| Country | Spelling | First forename | Any forename |
|---|---|---|---|
| Finland boys | Rio | 119 | 159 |
| Finland girls | Rio | 11 | 12 |
A count of people on a register – Finland on 4 August 2026 – and not of births, so it cannot be compared with the figures above. Names with very few bearers are withheld, and a dash in the first-forename column means the register would not say rather than that nobody goes by it.
Where Rio lives in Spain
Not a count of births but of people: 870 men called Rio were living in Spain on 1 January 2025, of every age, born in any year. Where they live is not spread evenly.
Men: the provinces where it is densest
| Province | Spelling | People | Per thousand | Place there |
|---|---|---|---|---|
| Balears, Illes | Rio | 48 | 0.077 | 859 |
| Huesca | Rio | 8 | 0.068 | 940 |
| Málaga | Rio | 54 | 0.062 | 922 |
| Barcelona | Rio | 163 | 0.056 | 1,043 |
| Pontevedra | Rio | 23 | 0.050 | 908 |
| Cuenca | Rio | 5 | 0.050 | 1,056 |
Listed in 34 of Spain's 52 provinces. In the other 18 it is either held by fewer than 5 people – the point below which the source withholds a name – or it fell past the 5,000 names the source will print for one province. Neither means nobody there is called it. The rate is the source's own, not a share worked out here.
Related names
Rio against another name
Two names on one chart, with the year one overtook the other.
Try it on yourself
Source: US Social Security Administration, national and state baby-name files, 1880–2025. Counts include only births registered with the SSA, and names with fewer than five births in a year are not published. The living estimate applies SSA cohort life tables to those births; it counts people born in the United States, so it misses anyone who arrived later and anyone who has left.