Alonso
Boy name · #785 in 2025 · Uniqueness 57/100
In 2025, 324 baby boys were named Alonso, placing it at #785 in the official national rankings. A decade ago it stood at #733, so the name has been falling over the past ten years. Roughly one in every 5,556 boys born in 2025 was named Alonso.
Babies named Alonso per year, 1880–2025. Source: SSA.
The 110-year story
Alonso first appears in the Social Security records in 1915, when 5 boys received the name. Its peak came in 2010, when 380 boys were named Alonso — good for #636 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.
Unlock the 5-year forecast and compare Alonso against up to 5 other names.
Uniqueness: will there be another Alonso in class?
Alonso scores 57 out of 100 on our uniqueness scale, which blends current rarity with five-year momentum — putting it in the "distinctive" band. That middle band is the sweet spot many parents hunt for: recognizable without being everywhere.
Where Alonso is most common
Geography matters for names, and Alonso is no exception. In 2025 the states with the most Alonsos were CA (78), TX (72), IL (19), AZ (17), FL (17). Raw counts naturally favor populous states, but the spread still hints at where the name is part of the local naming culture.
Names like Alonso
Statistically, parents drawn to Alonso tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Alvaro, Aldo, Adrien, Alfonso, and Ahmed.
AlvaroAldoAdrienAlfonsoAhmedJairoFrancoAnders
Rank history (last 25 years)
| Year | Babies named Alonso | Rank |
|---|---|---|
| 2025 | 324 | #785 |
| 2024 | 328 | #769 |
| 2023 | 287 | #845 |
| 2022 | 340 | #752 |
| 2021 | 318 | #778 |
| 2020 | 297 | #783 |
| 2019 | 316 | #755 |
| 2018 | 300 | #772 |
| 2017 | 317 | #746 |
| 2016 | 319 | #763 |
| 2015 | 333 | #733 |
| 2014 | 339 | #712 |
| 2013 | 348 | #688 |
| 2012 | 312 | #742 |
| 2011 | 347 | #678 |
| 2010 | 380 | #636 |
| 2009 | 373 | #659 |
| 2008 | 363 | #665 |
| 2007 | 363 | #661 |
| 2006 | 360 | #644 |
| 2005 | 329 | #655 |
| 2004 | 297 | #677 |
| 2003 | 296 | #669 |
| 2002 | 316 | #622 |
| 2001 | 243 | #722 |
Frequently asked questions
Is Alonso a popular boy name?
Alonso ranked #785 among boys in 2025 with 324 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #733.
When was the name Alonso most popular?
Alonso peaked in 2010, when 380 American boys received the name (ranked #636 that year). Since 2010 the name has declined from that high.
How rare is the name Alonso?
In 2025, roughly 1 in 5,556 newborn American boys was named Alonso. It scores 57/100 on our uniqueness scale (rarity blended with momentum), which we classify as "distinctive".
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.