UK boy's name
Saikou
The highest, supreme, greatest, or most excellent.
For 2026, the newest official UK baby-name figures on this page are from 2024. That release is the current official benchmark rather than a forecast.
Saikou is a boy's name in the UK records. People looking for Saikou popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #3688, with 5 babies registered with the name. Its strongest year in the published records was 2010, with 5 births.
This profile covers 30 England and Wales registrations across 8 recorded years from 2007 to 2024. 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 100% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 30 living people in the UK are called Saikou. 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 2025 or 2026.
Key insights
- • Saikou ranked #3688 for boys in England and Wales in 2024, with 5 registrations.
- • The name peaked in 2010, when 5 boys were registered as Saikou.
- • About 30 living people in the UK are estimated to have Saikou as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#3688
2024
Births in 2024
5
Latest year
Peak year
2010
5 births
Estimated living
30
2026
Meaning
What does Saikou mean?
The name Saikou is of Japanese origin and is derived from the words "sai" meaning "best" or "most excellent", and "kou" which can mean "perfection" or "the highest". It is a name that conveys a sense of excellence, superiority, and achievement.
In ancient Japan, the name Saikou was often given to children born into noble or samurai families, with the hope that they would grow up to become exceptional individuals and bring honor to their lineage. The name can be traced back to the Heian period (794-1185 AD), when it was used by members of the imperial court and aristocracy.
One of the earliest recorded mentions of the name Saikou can be found in the "Nihon Shoki", a chronicle of ancient Japanese history completed in 720 AD. The text references a prince named Saikou no Mikoto, who was a descendant of the legendary Emperor Jimmu.
Throughout Japanese history, there have been several notable figures who bore the name Saikou. One of the most famous was Saikou no Tsubone (1552-1614), a highly respected court lady and trusted advisor to Tokugawa Ieyasu, the founder of the Tokugawa Shogunate.
Another notable Saikou was Saikou Shima (1584-1632), a renowned Noh actor and playwright who is credited with reviving and popularizing the traditional Japanese theater form during the Edo period. His works, such as "Matsukaze" and "Hagoromo", are still performed today.
In the realm of Japanese literature, Saikou Kishi (1829-1905) was a prominent novelist and poet of the late Edo and early Meiji eras. His works, including "Ukigumo" and "Nanakusa Soshi", explored themes of human nature and the rapidly changing society of his time.
During the Meiji Restoration, Saikou Tsugaru (1843-1905) was a influential political figure and one of the leaders of the Ouetsu Reppan Domei, a coalition of samurai domains that played a crucial role in overthrowing the Tokugawa Shogunate and restoring imperial rule.
In more recent times, Saikou Yamaguchi (1914-1996) was a celebrated Japanese artist and print maker, known for his intricate woodblock prints that depicted traditional Japanese landscapes and scenes from daily life.
Sourced from namecensus.com.
Popularity
Saikou over time
The chart below shows babies named Saikou registered in England and Wales in the years where the name appears in the published records, from 2007 to 2024. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Saikou, the clearest high point is 2010. The latest England and Wales figure is 5 births in 2024, compared with 5 at the peak.
Babies born per year
Decades
Saikou by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Saikou 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 | #4148 | 8 | 2 |
| 2010s | #4277 | 18 | 5 |
| 2000s | #3589 | 4 | 1 |
Related
Names similar to Saikou
- Samuel 108,505
- Sebastian 33,008
- Sam 20,889
- Stanley 16,354
- Sonny 15,028
- Sean 15,006
- Scott 12,587
- Seth 9,841
- Syed 9,050
- Stephen 8,884
- Spencer 8,333
- Steven 6,970
FAQ
Saikou: questions and answers
How popular is the name Saikou in the UK right now?
In 2024, Saikou was ranked #3688 for boys in England and Wales, with 5 births registered.
When was Saikou most popular?
The peak year on record was 2010, with 5 babies registered as Saikou in England and Wales.
What is the meaning and origin of Saikou?
The highest, supreme, greatest, or most excellent.
How many people are called Saikou in the UK?
A total of 30 babies have been registered as Saikou across the 8 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.