Name Generator
How popular is the name Katy?
Births per year, rank history and how many Katies are alive today.
Katy (female) is a rare spelling of the girls' name Katie in England and Wales, ranked 4201st in 2025 and given to 5 babies. This spelling of the name peaked in 1984, when around 470 babies were given the name, the 65th most popular that year. It has declined since 1984; the 2025 figure is roughly 1% of its peak. At least 10,000 babies have been named Katy in England and Wales since 1984. Figures before 1996 are estimates.
Across all spellings of the name, the Katie you are most likely to meet is around 32 years old. Half of all Katies born in England and Wales are between 24 and 40, and there are at least 130,000 of them alive today. If you walk into a room of 100 females, there's roughly a 34% chance that at least one of them will be called Katie.
How many babies are named Katy each year?
Includes all spellings: Katy, Katie. Figures before 1996 are estimates.
Where does the Katy spelling rank?
Where does the Katie spelling rank?
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 Katy most popular?
The most popular form of the name, Katie, peaked in 1994, when around 4,800 babies in England and Wales were given the name. The Katy spelling itself peaked in 1984, with around 470 babies.
How many people are called Katy?
At least 130,000 people named Katy in any spelling born in England and Wales are alive today.
How old is the typical Katy?
Most living Katies are between 24 and 40; the most common age is about 32.
Is Katy becoming more or less popular?
Declining: recent figures are a fraction of the 1994 peak.