UK girl's name
Boo
For 2026, the newest official UK baby-name figures on this page are from 2020. That release is the current official benchmark rather than a forecast.
Boo is a girl's name in the UK records. People looking for Boo popularity in 2026 should use the latest official release, which is 2020 in this profile. In that release it ranked #4535, with 4 babies registered with the name. Its strongest year in the published records was 2010, with 8 births.
This profile covers 39 England and Wales registrations across 9 recorded years from 2004 to 2020. 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 50% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 39 living people in the UK are called Boo. 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 2021 or 2026.
Key insights
- • Boo ranked #4535 for girls in England and Wales in 2020, with 4 registrations.
- • The name peaked in 2010, when 8 girls were registered as Boo.
- • About 39 living people in the UK are estimated to have Boo as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#4535
2020
Births in 2020
4
Latest year
Peak year
2010
8 births
Estimated living
39
2026
Popularity
Boo over time
The chart below shows babies named Boo registered in England and Wales in the years where the name appears in the published records, from 2004 to 2020. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Boo, the clearest high point is 2010. The latest England and Wales figure is 4 births in 2020, compared with 8 at the peak.
Babies born per year
Decades
Boo by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Boo 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 | #4535 | 4 | 1 |
| 2010s | #4673 | 27 | 6 |
| 2000s | #4010 | 8 | 2 |
Related
Names similar to Boo
- Bethany 43,226
- Brooke 18,370
- Bella 14,112
- Bonnie 12,149
- Beatrice 11,306
- Bethan 7,968
- Beth 6,440
- Betsy 5,065
- Beatrix 4,317
- Billie 4,220
- Beau 3,231
- Bryony 3,167
FAQ
Boo: questions and answers
How popular is the name Boo in the UK right now?
In 2020, Boo was ranked #4535 for girls in England and Wales, with 4 births registered.
When was Boo most popular?
The peak year on record was 2010, with 8 babies registered as Boo in England and Wales.
How many people are called Boo in the UK?
A total of 39 babies have been registered as Boo across the 9 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.