Masterpiece Generator Name Generator
How popular is the name Io?
Births per year, rank history and how many Ios are alive today.
Io (female) is a rare girls' name in England and Wales, ranked 4193rd in 2024 and given to 5 babies. The name peaked in 2021, when 9 babies were given the name, the 2711th most popular that year.
The Io you are most likely to meet is around 6 years old. Half of all Ios born in England and Wales are between 5 and 21, and there are at least 98 of them alive today. If you walk into a room of 100 females, there's less than a 1% chance that anyone will be called Io - on average, only one in every 3,215 such rooms contains a Io.
How many babies are named Io each year?
Where does Io rank among girls' 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 Io most popular?
Io peaked in 2021, when 9 babies in England and Wales were given the name.
How many people are called Io?
At least 98 people named Io born in England and Wales are alive today.
How old is the typical Io?
Most living Ios are between 5 and 21; the most common age is about 6.
Is Io becoming more or less popular?
Declining: numbers have been falling in recent years.