UK girl's name
Siwan
For 2026, the newest official UK baby-name figures on this page are from 2022. That release is the current official benchmark rather than a forecast.
Siwan is a girl's name in the UK records. People looking for Siwan popularity in 2026 should use the latest official release, which is 2022 in this profile. In that release it ranked #4645, with 4 babies registered with the name. Its strongest year in the published records was 2001, with 16 births.
This profile covers 195 England and Wales registrations across 26 recorded years from 1996 to 2022. The figures come from ONS England and Wales, so the page is a view of published baby-name registrations rather than a forecast or a live count of people using the name today.
The latest count is about 25% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 194 living people in the UK are called Siwan. This uses published birth registrations from England and Wales, Scotland and Northern Ireland, then applies ONS national life tables to estimate how many are likely still alive. It does not forecast extra births for 2023 or 2026.
Key insights
- • Siwan ranked #4645 for girls in England and Wales in 2022, with 4 registrations.
- • The name peaked in 2001, when 16 girls were registered as Siwan.
- • About 194 living people in the UK are estimated to have Siwan as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#4645
2022
Births in 2022
4
Latest year
Peak year
2001
16 births
Estimated living
194
2026
Popularity
Siwan over time
The chart below shows babies named Siwan registered in England and Wales in the years where the name appears in the published records, from 1996 to 2022. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Siwan, the clearest high point is 2001. The latest England and Wales figure is 4 births in 2022, compared with 16 at the peak.
Babies born per year
Decades
Siwan by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Siwan was a short-lived spike or a name that stayed in regular use. Average rank is calculated only from years where a published rank exists.
| Decade | Average rank | Total births | Years covered |
|---|---|---|---|
| 2020s | #4393 | 13 | 3 |
| 2010s | #3648 | 57 | 9 |
| 2000s | #2447 | 90 | 10 |
| 1990s | #2050 | 35 | 4 |
Related
Names similar to Siwan
- Sophie 103,803
- Sophia 46,936
- Scarlett 34,261
- Sienna 32,418
- Sofia 29,136
- Sarah 27,961
- Shannon 25,510
- Summer 24,167
- Sara 14,205
- Skye 13,654
- Samantha 12,697
- Stephanie 9,309
FAQ
Siwan: questions and answers
How popular is the name Siwan in the UK right now?
In 2022, Siwan was ranked #4645 for girls in England and Wales, with 4 births registered.
When was Siwan most popular?
The peak year on record was 2001, with 16 babies registered as Siwan in England and Wales.
How many people are called Siwan in the UK?
A total of 195 babies have been registered as Siwan across the 26 years of ONS England & Wales records shown here.
Which records is this page based on?
The England and Wales timeline uses ONS baby-name records. Scotland figures come from NRS and Northern Ireland figures come from NISRA. Counts are registrations in published baby-name files. The living estimate uses those birth registrations with ONS national life tables.