Masterpiece Generator Name Generator
How popular is the name Oisin?
Births per year, rank history and how many Oisins are alive today.
Oisin (male) is an uncommon boys' name in England and Wales, ranked 517th in 2025 with 75 babies given the name. The name peaked in 2021, when 96 babies were given the name, the 433rd most popular that year. Its fortunes dipped to rank 651 in 2023 before climbing back to the 517th place it holds today. Numbers have been falling in recent years.
The Oisin you are most likely to meet is around 4 years old. Half of all Oisins born in England and Wales are between 5 and 20, and there are at least 1,400 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 Oisin - on average, only one in every 217 such rooms contains a Oisin.
How many babies are named Oisin each year?
Where does Oisin 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 Oisin most popular?
Oisin peaked in 2021, when 96 babies in England and Wales were given the name.
How many people are called Oisin?
At least 1,400 people named Oisin born in England and Wales are alive today.
How old is the typical Oisin?
Most living Oisins are between 5 and 20; the most common age is about 4.
Is Oisin becoming more or less popular?
Declining: numbers have been falling in recent years.