Masterpiece Generator Name Generator
How popular is the name Cosmo?
Births per year, rank history and how many Cosmos are alive today.
Cosmo (male) is an uncommon boys' name in England and Wales, ranked 639th in 2025 with 57 babies given the name. It has risen strongly over the past decade.
The Cosmo you are most likely to meet is around 2 years old. Half of all Cosmos born in England and Wales are between 4 and 20, and there are at least 760 of them alive today. If you walk into a room of 100 males, there's less than a 1% chance that anyone will be called Cosmo - on average, only one in every 399 such rooms contains a Cosmo.
How many babies are named Cosmo each year?
Where does Cosmo rank among boys' names?
Where this data comes from
Figures from 1996 onwards are the Office for National Statistics' annual baby-name registrations for England and Wales, which record every name given to three or more babies in a year. Figures before 1996 are estimates: the ONS published only top-100 rankings at ten-year intervals back to 1904, so counts for those years are modelled from the rankings, calibrated against Douglas Galbi's long-run research into English name frequencies, and shown with an uncertainty band. Estimates of living bearers combine these birth figures with national life tables and ONS mid-year population estimates.
One limit worth naming: these figures count names as registered at birth. Anyone who changes their name later in life - including trans people, and anyone who adopts a different name by deed poll or simply by use - is not reflected here. Birth registrations record where a name began, not the name a person lives with.
Common questions
When was the name Cosmo most popular?
Cosmo peaked in 2025, when 57 babies in England and Wales were given the name.
How many people are called Cosmo?
At least 760 people named Cosmo born in England and Wales are alive today.
How old is the typical Cosmo?
Most living Cosmos are between 4 and 20; the most common age is about 2.
Is Cosmo becoming more or less popular?
Rising: it has climbed strongly over the past decade.