Masterpiece Generator Name Generator
How popular is the name Gwilym?
Births per year, rank history and how many Gwilyms are alive today.
Gwilym (male) is a rare boys' name in England and Wales, ranked 1359th in 2025 and given to 20 babies. The name peaked in 2015, when 23 babies were given the name, the 1159th most popular that year. It has risen strongly over the past decade. Common short forms of Gwilym include Liam and Billy.
The Gwilym you are most likely to meet is around 6 years old. Half of all Gwilyms born in England and Wales are between 8 and 27, and there are at least 510 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 Gwilym - on average, only one in every 595 such rooms contains a Gwilym.
How many babies are named Gwilym each year?
Where does Gwilym 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 Gwilym most popular?
Gwilym peaked in 2015, when 23 babies in England and Wales were given the name.
How many people are called Gwilym?
At least 510 people named Gwilym born in England and Wales are alive today.
How old is the typical Gwilym?
Most living Gwilyms are between 8 and 27; the most common age is about 6.
Is Gwilym becoming more or less popular?
Declining: numbers have been falling in recent years.