Cosimo
Every Cosimo since 1911 — 1,016 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Cosimo
Cosimo is rare for boys in the United States, ranked #5,654 in 2025 with 16 babies given the name. It is currently rising compared with a decade ago.
Since 1911, 1,016 American babies have been named Cosimo. Its peak came in 1927, when 30 newborns received the name — the signature sound of the 1920s.
The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Cosimo stood among all boys' names in any year, or use the compare tool to plot it against other names.
Cosimo year by year
Every year since 2001, and five-year steps back to 1880. Rank is within each sex.
| Year | Boys | Boys rank |
|---|---|---|
| 2025 | 16 | #5,654 |
| 2024 | 19 | #5,104 |
| 2023 | 18 | #5,289 |
| 2022 | 12 | #6,907 |
| 2021 | 10 | #7,718 |
| 2020 | 10 | #7,626 |
| 2019 | 14 | #6,162 |
| 2018 | 14 | #6,095 |
| 2017 | 15 | #5,854 |
| 2016 | 6 | #10,999 |
| 2015 | 9 | #8,171 |
| 2014 | 5 | #12,447 |
| 2013 | — | — |
| 2012 | — | — |
| 2011 | 8 | #8,917 |
| 2010 | 9 | #8,278 |
| 2009 | 12 | #6,884 |
| 2008 | 10 | #7,801 |
| 2007 | 7 | #9,966 |
| 2006 | 6 | #10,931 |
| 2005 | 10 | #7,217 |
| 2004 | 5 | #11,690 |
| 2003 | 7 | #8,832 |
| 2002 | — | — |
| 2001 | 5 | #10,895 |
| 2000 | 6 | #9,300 |
| 1995 | 5 | #9,113 |
| 1990 | — | — |
| 1985 | — | — |
| 1980 | 14 | #3,127 |
| 1975 | 8 | #4,018 |
| 1970 | 8 | #3,576 |
| 1965 | — | — |
| 1960 | — | — |
| 1955 | 8 | #3,015 |
| 1950 | 9 | #2,614 |
| 1945 | 8 | #2,604 |
| 1940 | 10 | #2,357 |
| 1935 | 8 | #2,752 |
| 1930 | 22 | #1,567 |
| 1925 | 15 | #2,109 |
| 1920 | 19 | #1,835 |
| 1915 | 17 | #1,719 |
| 1910 | — | — |
| 1905 | — | — |
| 1900 | — | — |
| 1895 | — | — |
| 1890 | — | — |
| 1885 | — | — |
| 1880 | — | — |
Famous people named Cosimo
- Cosimo de' Medici Businessperson · 1389–1464
- Cosimo I de' Medici, Grand Duke of Tuscany Politician · 1519–1574
- Cosimo II de' Medici, Grand Duke of Tuscany Nobleman · 1590–1621
- Cosimo Rosselli Painter · 1439–1507
- Cosimo III de' Medici, Grand Duke of Tuscany Politician · 1642–1723
Ranked by global fame across Wikipedia editions (Pantheon project, MIT).
Frequently asked questions
How popular is the name Cosimo in 2025?
Cosimo ranked #5,654 among boys' names in the United States in 2025, with 16 babies given the name, according to Social Security Administration data.
How many people are named Cosimo?
1,016 babies have been named Cosimo in the United States since 1911, based on Social Security card applications.
When was the name Cosimo most popular?
Cosimo peaked in 1927, when 30 newborns received the name.
Is Cosimo a boy or girl name?
Cosimo is overwhelmingly a boy's name — 100% of babies with the name.
Is the name Cosimo rising or falling?
Cosimo is on the rise — noticeably more popular now than a decade ago.
Who are famous people named Cosimo?
Well-known people named Cosimo include Cosimo de' Medici (businessperson), Cosimo I de' Medici, Grand Duke of Tuscany (politician), Cosimo II de' Medici, Grand Duke of Tuscany (nobleman).