Name Generator
How popular is the name Jilly?
Births per year, rank history and how many Jillies are alive today.
Jilly (female) is a shortened form of the name Gillian. Jilly itself was last registered for 3 babies in 2012; most Jillies are registered as Gillian, which ranked 4201st in 2025 with 5 babies.
Most people called Jilly are registered as Gillian, and share that name's profile: the Gillian you are most likely to meet is around 72 years old. Half of all Gillians born in England and Wales are between 64 and 77, and there are at least 83,000 of them alive today. Only some Gillians go by Jilly.
How many babies are named Jilly or Gillian each year?
Combined registrations of Gillian, Jilly. Figures before 1996 are estimates.
Where does Gillian rank as a registered name?
Where does Jilly rank as a registered name?
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
Is Jilly short for Gillian?
Yes - Jilly is a shortened form of Gillian. Jillies are usually registered as Gillian at birth.
When was the name Jilly most popular?
The full name Gillian peaked in 1954, when around 4,200 babies in England and Wales were given the name. Jilly itself peaked as a registered name in 1996, with 6 babies.
How many people are called Jilly?
There's no official count of people who go by Jilly, because it's a nickname rather than a registered name. What we can say: at least 83,000 people registered as Gillian born in England and Wales are alive today, and some of them go by Jilly.
How old is the typical Jilly?
Most people called Jilly are registered as Gillian. Most living Gillians are between 64 and 77; the most common age is about 72.
Is Jilly becoming more or less popular?
Rising: numbers have been climbing in recent years.