Rio Boy & girl
How popular is Rio?
#532 boy name in 2025
563 baby boys were named Rio in the US in 2025, making it the 532nd most popular boy name. Another 105 girls got the name (#1,872 for girls).
Rio popularity over time
Boys Girls
| Rank in 2025 | #532 for boys (▼ 15 from 2024) |
|---|---|
| Babies in 2025 | 563 boys, 105 girls |
| 10-year trend | Rising fast (+447% babies vs 2015) |
| Earlier ranks | #1,567 in 2015, #774 in 2020 |
| Peak year | 2024 (593 boys) |
| Highest rank | #517 in 2024 |
| First recorded | 1920 |
| Boys vs girls (last 10 years) | 79% boys, 21% girls |
| Chance a classmate shares it | 0.5% in a class of 25 kids born in 2025 |
Rio counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Rio family of names ranked #483 for boys in 2025 (#461 the year before), with 612 babies in all.
| Spelling | Boys in 2025 | Share |
|---|---|---|
| Rio | 563 | 92% |
| Ryo | 49 | 8% |
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Where Rio is most popular
Babies named Rio per 1,000 boys born in each state, 2021 to 2025. Darker means more common.
- New Mexico: 0.8 per 1,000 (26 boys)
- Oregon: 0.6 per 1,000 (49 boys)
- California: 0.6 per 1,000 (570 boys)
- Colorado: 0.6 per 1,000 (77 boys)
- Arizona: 0.5 per 1,000 (85 boys)
Rio by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1920s | 10 | #4,284 |
| 1930s | 5 | #3,677 |
| 1950s | 10 | #3,941 |
| 1960s | 16 | #2,860 |
| 1970s | 97 | #2,797 |
| 1980s | 191 | #2,085 |
| 1990s | 411 | #1,859 |
| 2000s | 636 | #1,764 |
| 2010s | 1,246 | #1,057 |
| 2020s | 2,908 | #517 |
Boy names about as popular as Rio
Questions
- Is Rio a boy or girl name?
- Rio is used for both. Over the last 10 years, 79% of babies named Rio were boys and 21% were girls.
- How popular is the name Rio?
- 563 baby boys were named Rio in the US in 2025, making it the 532nd most popular boy name. Another 105 girls got the name (#1,872 for girls).
- When was Rio most popular?
- Rio peaked in 2024, when 593 boys were given the name. Its highest rank was #517 in 2024.
- How many people are named Rio?
- 7,812 babies have been named Rio in the US since 1880. We estimate about 7,712 of them are alive in 2026, with a median age of 7.
- Where is Rio most popular?
- From 2021 to 2025, Rio was most common in New Mexico, at 0.8 of every 1,000 boys born there.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.