Rio
Girl name · #1875 in 2025 · Very rare
Rio is currently the #1875 girl name in the United States — 105 babies received it in 2025. A decade ago it stood at #3915, so the name has been rising over the past ten years. Roughly one in every 17,143 girls born in 2025 was named Rio.
The 95-year story
Rio first appears in the Social Security records in 1930, when 8 girls received the name. Its peak came in 2021, when 124 girls were named Rio — good for #1676 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Rio per year. Source: SSA.
Unlock the 5-year forecast and compare Rio against up to 5 other names.
Uniqueness: will there be another Rio in class?
On our rarity read — which blends how common Rio is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Rio will likely be the only one in the room, with the occasional spelling-out as the price.
Where Rio is most common
State-level data for Rio is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Rio
Statistically, parents drawn to Rio tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Reem, Raine, Ryah, Aiko, and Coco.
ReemRaineRyahAikoCocoRuhiRyaRain
Rank history (last 25 years)
| Year | Babies named Rio | Rank |
|---|---|---|
| 2025 | 105 | #1872 |
| 2024 | 111 | #1810 |
| 2023 | 106 | #1878 |
| 2022 | 119 | #1742 |
| 2021 | 124 | #1676 |
| 2020 | 91 | #2034 |
| 2019 | 110 | #1844 |
| 2018 | 77 | #2361 |
| 2017 | 51 | #3145 |
| 2016 | 61 | #2798 |
| 2015 | 38 | #3915 |
| 2014 | 45 | #3486 |
| 2013 | 43 | #3573 |
| 2012 | 51 | #3213 |
| 2011 | 56 | #3014 |
| 2010 | 58 | #2938 |
| 2009 | 68 | #2672 |
| 2008 | 59 | #2957 |
| 2007 | 54 | #3168 |
| 2006 | 49 | #3316 |
| 2005 | 47 | #3257 |
| 2004 | 41 | #3566 |
| 2003 | 56 | #2771 |
| 2002 | 33 | #3889 |
| 2001 | 42 | #3256 |
Frequently asked questions
Is Rio a popular girl name?
Rio ranked #1875 among girls in 2025 with 105 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #3915.
When was the name Rio most popular?
Rio peaked in 2021, when 124 American girls received the name (ranked #1676 that year). Since 2021 the name has declined from that high.
How rare is the name Rio?
In 2025, roughly 1 in 17,143 newborn American girls was named Rio. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.