Name Generator
How popular is the name Cy?
Births per year, rank history and how many Cies are alive today.
Cy (male) is a rare spelling of the boys' name Sai in England and Wales, ranked 5120th in 2024 and given to 3 babies. This spelling of the name peaked in 2000, when 10 babies were given the name, the 1330th most popular that year. It has declined since 2000; the 2024 figure is roughly 30% of its peak.
Across all spellings of the name, the Sai you are most likely to meet is around 2 years old. Half of all Sais born in England and Wales are between 8 and 24, and there are at least 710 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 Sai - on average, only one in every 427 such rooms contains a Sai.
How many babies are named Cy each year?
Includes all spellings: Cy, Sai. Figures before 1996 are estimates.
Where does the Cy spelling rank?
Where does the Sai 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 Cy most popular?
The most popular form of the name, Sai, peaked in 2024, when 41 babies in England and Wales were given the name. The Cy spelling itself peaked in 2000, with 10 babies.
How many people are called Cy?
At least 710 people named Cy in any spelling born in England and Wales are alive today.
How old is the typical Cy?
Most living Cies are between 8 and 24; the most common age is about 2.
Is Cy becoming more or less popular?
Declining: recent figures are a fraction of the 2024 peak.