Cosmo
Boy name · #1935 in 2025 · Uniqueness 61/100
Cosmo is currently the #1935 boy name in the United States — 80 babies received it in 2025. A decade ago it stood at #3431, so the name has been rising over the past ten years. Roughly one in every 22,500 boys born in 2025 was named Cosmo.
The 115-year story
Cosmo first appears in the Social Security records in 1910, when 6 boys received the name. Its all-time peak is essentially right now: 2022, with 99 babies and a rank of #1706. Names at their peak can keep climbing — or be one trend cycle from the long slide that eventually hits most popular names. 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 Cosmo per year, 1880–2025. Source: SSA.
Unlock the 5-year forecast and compare Cosmo against up to 5 other names.
Uniqueness: will there be another Cosmo in class?
Cosmo scores 61 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 Cosmo is most common
Geography matters for names, and Cosmo is no exception. In 2025 the states with the most Cosmos were CA (14), NY (9), PA (6), TX (5). Raw counts naturally favor populous states, but the spread still hints at where the name is part of the local naming culture.
Names like Cosmo
Statistically, parents drawn to Cosmo tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Amadeo, Kaito, Draco, Miklo, and Cato.
AmadeoKaitoDracoMikloCatoRenzoIndigoKailo
Rank history (last 25 years)
| Year | Babies named Cosmo | Rank |
|---|---|---|
| 2025 | 80 | #1932 |
| 2024 | 99 | #1685 |
| 2023 | 94 | #1744 |
| 2022 | 99 | #1706 |
| 2021 | 78 | #1931 |
| 2020 | 60 | #2264 |
| 2019 | 49 | #2626 |
| 2018 | 41 | #2893 |
| 2017 | 42 | #2840 |
| 2016 | 21 | #4624 |
| 2015 | 32 | #3431 |
| 2014 | 14 | #5997 |
| 2013 | 20 | #4621 |
| 2012 | 16 | #5482 |
| 2011 | 22 | #4356 |
| 2010 | 25 | #3994 |
| 2009 | 18 | #5102 |
| 2008 | 22 | #4395 |
| 2007 | 19 | #4808 |
| 2006 | 33 | #3227 |
| 2005 | 41 | #2653 |
| 2004 | 26 | #3534 |
| 2003 | 22 | #3838 |
| 2002 | 29 | #3095 |
| 2001 | 22 | #3721 |
Frequently asked questions
Is Cosmo a popular boy name?
Cosmo ranked #1935 among boys in 2025 with 80 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #3431.
When was the name Cosmo most popular?
Cosmo peaked in 2022, when 99 American boys received the name (ranked #1706 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Cosmo?
In 2025, roughly 1 in 22,500 newborn American boys was named Cosmo. It scores 61/100 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.