Cosimo
Cosimo was the 5654th most popular name for boys in 2025, given to 16 babies. Its best year was 1927, when it ranked 1354th with 30 babies. Over the last ten years it has moved up 2,517 places. More babies were named Cosimo in the 1920s than in any other decade.
Meaning Not yet researched how we research meanings
- Rank in 2025
- #5,654 boys, up 1,972 places since 2020
- Babies in 2025
- 16boys
- Girls and boys
- Almost always a boy’s name2021–2025
- Peak year
- 192730 babies
- Total since 1880
- 1,016babies recorded
Cosimo popularity since 1880
| Year | Rank (boys) | Babies (boys) |
|---|---|---|
| 2025 | #5,654 | 16 |
| 2020 | #7,626 | 10 |
| 2010 | #8,278 | 9 |
| 2000 | #9,300 | 6 |
| 1990 | — | — |
| 1980 | #3,127 | 14 |
| 1970 | #3,576 | 8 |
| 1960 | — | — |
| 1950 | #2,614 | 9 |
| 1940 | #2,357 | 10 |
| 1930 | #1,567 | 22 |
| 1920 | #1,835 | 19 |
| 1910 | — | — |
| 1900 | — | — |
| 1890 | — | — |
| 1880 | — | — |
How popular is Cosimo, counting every spelling?
Cosimo has no other common spelling that sounds the same.
How many kids will share the name Cosimo?
16 of the 3,606,400 babies born in the US in 2025 were named Cosimo (0.00 per 1,000 births). For a boy named Cosimo born in 2025, the chance that another child with the same name is in a class of 20 children the same age is under 1 in 50. If every grade liked the name as much as the 2025 babies do, only about one elementary school in 529 (of 430 pupils) would have a child named Cosimo.
Shares of all registered births (NCHS); classes assumed to be children born the same year. How we estimate this.
How old are people named Cosimo?
About 500 people born in the US named Cosimo are alive today, with a median age of 33; half are between 9 and 59. That makes Cosimo mostly worn by adults in their thirties to fifties. The wide spread shows a name popular in two different eras.
Babies given the name each year (SSA) times the share of that birth year still alive (SSA life tables). Counts people born in the US only. Method.
Cosimo by state
How common Cosimo was among boys born in each state in 2021–2025. In 49 states fewer than five boys a year got the name, too few for SSA to publish, so those states show as zero.
Names with a similar history
These names rose and fell in step with Cosimo: their share of US boys followed the most similar curve since 1880. If you like Cosimo, they share its era and feel.
Questions about the name Cosimo
How popular is the name Cosimo?
Cosimo was the 5654th most popular name for boys in 2025, given to 16 babies. Its best year was 1927, when it ranked 1354th with 30 babies. Over the last ten years it has moved up 2,517 places. More babies were named Cosimo in the 1920s than in any other decade.
Is Cosimo a boy or girl name?
In 2021–2025, almost always a boy’s name given the name Cosimo in the US.
Where is Cosimo most popular?
In 2021–2025, Cosimo was most common in New York (0.02 per 1,000 boys), followed by California and California.