UK boy's name
Kayjay
A combination of the initials K and J, with no definite meaning.
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.
Kayjay is a boy's name in the UK records. People looking for Kayjay popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #5119, with 3 babies registered with the name. Its strongest year in the published records was 2024, with 3 births.
This profile covers 3 England and Wales registrations across 1 recorded years from 2024 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.
Kayjay is at its recorded peak in the England and Wales series.
We estimate that about 3 living people in the UK are called Kayjay. 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
- • Kayjay ranked #5119 for boys in England and Wales in 2024, with 3 registrations.
- • The name peaked in 2024, when 3 boys were registered as Kayjay.
- • About 3 living people in the UK are estimated to have Kayjay as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#5119
2024
Births in 2024
3
Latest year
Peak year
2024
3 births
Estimated living
3
2026
Meaning
What does Kayjay mean?
The name Kayjay is a relatively modern name, believed to have originated in the 20th century as a blend of the names Kay and Jay. It does not have a direct linguistic or cultural origin from ancient times.
While the individual names Kay and Jay have separate histories, the combined form Kayjay is a more recent invention. Kay is a diminutive of the name Katharine or Katherine, which derives from the Greek name Aikaterine. Jay is a diminutive of the name Jacob, which comes from the Hebrew name Ya'aqov.
The earliest recorded examples of the name Kayjay are from the mid-20th century. One of the earliest known individuals with this name was Kayjay Janecka, an American singer and musician born in 1949. Another notable figure was Kayjay Dallimer, an Australian rugby league player active in the 1970s and 1980s.
Kayjay Sukarno was an Indonesian politician and diplomat who served as the ambassador to several countries in the late 20th century. Kayjay Ramasamy was a Malaysian politician and activist who fought for the rights of the Indian community in Malaysia in the 1990s and 2000s.
In the world of sports, Kayjay Hill was an American basketball player who played in the WNBA in the early 2000s. Kayjay Bynum was an American football player who played in the NFL in the 2010s.
As a relatively new name, Kayjay does not have a long historical record or references in ancient texts or religious scriptures. Its popularity and usage are primarily confined to the modern era, particularly in English-speaking countries.
Sourced from namecensus.com.
Decades
Kayjay by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Kayjay 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 | #5119 | 3 | 1 |
Related
Names similar to Kayjay
- Kieran 30,429
- Kyle 28,463
- Kai 24,432
- Kian 17,666
- Kayden 8,305
- Kevin 7,927
- Kane 7,149
- Kaiden 5,762
- Kieron 4,547
- Kacper 4,366
- Kye 4,012
- Kit 3,529
FAQ
Kayjay: questions and answers
How popular is the name Kayjay in the UK right now?
In 2024, Kayjay was ranked #5119 for boys in England and Wales, with 3 births registered.
When was Kayjay most popular?
The peak year on record was 2024, with 3 babies registered as Kayjay in England and Wales.
What is the meaning and origin of Kayjay?
A combination of the initials K and J, with no definite meaning.
How many people are called Kayjay in the UK?
A total of 3 babies have been registered as Kayjay across the 1 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.