How Many People Are Named Cosimo?
people named Cosimo are alive in the United States today (estimate)
About 1 in 680,846 people in the US has this name
Based on 1,016 babies named Cosimo in Social Security records from 1911 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
30 births
Trend
Stable (last 10 years)
📖 Name Origin & Meaning
Meaning:
Italian variant of COSMAS. A famous bearer was Cosimo de' Medici, the 15th-century founder of Medici rule in Florence, who was a patron of the Renaissance and a successful merchant. Other members of the Medici family have also borne this name.
Source of the meaning, origin, pronunciation and related names: Behind the Name.
⚧ Gender Distribution
All of the babies given the name Cosimo in the records were boys.
👥 Age Distribution
The average person named Cosimo alive today is about 36 years old, and 47% are under 30. Half of them were between 8 and 59 in 2025.
📈 Popularity Over Time
Cosimo first appears in the records in 1911 and was given most often in 1927, to 30 babies. In 2025, 16 babies got the name.
Babies given the name each year, 1911 to 2025
🏆 Rank History
Cosimo has never been one of the 100 most popular boys' names. Its best rank was #1,354, in 1927. In 2025 it ranked #5,652.
| Boys | |
|---|---|
| Rank in 2025 | #5,652 |
| Best rank | #1,354 (1927) |
| Years in the top 100 | None |
| Rank in its biggest decade | #1,646 in the 1920s |
📍 State-Wise Distribution
People named Cosimo alive today, by the state where they were born (estimate; state records start in 1910).
More people named Cosimo were born in New York than in any other state: about 24 of those alive today. Compared with the national rate in the same years, Cosimo was given about 8.3 times as often in New York.
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