UK name, mostly boys
Cj
A masculine diminutive form of Charles or Charles Junior.
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.
Cj is mostly registered for boys in the UK records. People looking for Cj popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #2088, with 11 babies registered with the name. Its strongest year in the published records was 2017, with 17 births.
This profile covers 200 England and Wales registrations across 22 recorded years from 1999 to 2024. The figures come from ONS England and Wales and NISRA Northern Ireland, 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 65% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 210 living people in the UK are called Cj. 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
- • Cj ranked #2088 for boys in England and Wales in 2024, with 11 registrations.
- • The name peaked in 2017, when 17 boys were registered as Cj.
- • Cj ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #311 in 2022.
- • About 210 living people in the UK are estimated to have Cj as a first name, after adjusting past birth registrations with ONS life tables.
- • Across the England and Wales records shown here, 98.0% of Cj registrations are for boys.
Latest rank (E&W)
#2088
2024
Births in 2024
11
Latest year
Peak year
2017
17 births
Estimated living
210
2026
Gender
Boy and girl registrations for Cj
In England and Wales birth records, Cj has been registered for both boys and girls. Across the years shown here, 98.0% of registrations are for boys and 2.0% are for girls.
These figures use the sex categories in the published baby-name files. They are useful for spotting how the name is used at registration, but they are not a live measure of gender identity or everyone living with the name today.
Cj registered for boys
- Ranked #2,088 in 2024
- 11 boys registered in 2024
- Peak: 2017 (17 births)
Cj registered for girls
- Ranked #3,594 in 2003
- 4 girls registered in 2003
- Peak: 2003 (4 births)
Meaning
What does Cj mean?
The name Cj has its origins in the Latin language, dating back to ancient Roman times. It is a shortened form of the name Caius, which was a popular Roman praenomen, or personal name, during the Roman Republic and Empire periods.
The name Caius is derived from the Latin word "gaudere," which means "to rejoice" or "to be glad." This suggests that Cj may have been used as a name to express joy or happiness for a newborn child. It was a common practice in ancient Roman society to choose names with positive meanings or associations.
One of the earliest recorded instances of the name Caius can be found in the writings of ancient Roman historians and philosophers, such as Cicero and Tacitus. They mention several prominent figures bearing the name, including Gaius Julius Caesar, the famous Roman leader and military strategist who lived from 100 BC to 44 BC.
Another notable figure was Gaius Suetonius Tranquillus, a Roman historian who lived from around 69 AD to 122 AD. He is best known for his work "De Vita Caesarum," which chronicled the lives of the first twelve Roman emperors.
In the medieval period, the name Caius was sometimes Latinized as Gaius or Gajus, but it remained relatively uncommon in most parts of Europe. However, it did see some use in Italy, where it was rendered as Gaio or Cajo.
During the Renaissance, the name experienced a revival, particularly among humanist scholars and intellectuals who admired classical Roman culture. One notable figure was Gaius Sallustius Crispus, better known as Sallust, a Roman historian and politician who lived from 86 BC to 35 BC.
In more recent history, the shortened form Cj has been used as a given name, although it remains relatively uncommon. One notable bearer was Cj Wilcox, an American professional basketball player who was born in 1990 and played in the NBA for several teams, including the Los Angeles Clippers and the Orlando Magic.
Overall, while the name Cj may not be as widely used today as it was in ancient Roman times, it has a rich historical legacy and associations with joy, gladness, and classical Roman culture.
Sourced from namecensus.com.
Popularity
Cj over time
The chart below compares boys and girls registered as Cj in England and Wales, from 1999 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 Cj, the clearest high point is 2017. The latest England and Wales figure is 11 births in 2024, compared with 17 at the peak.
Babies born per year
Decades
Cj by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Cj 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 | #2281 | 48 | 5 |
| 2010s | #2136 | 104 | 10 |
| 2000s | #2457 | 45 | 6 |
| 1990s | #2943 | 3 | 1 |
Geography
Where Cj is most common
The bars show the latest published local birth counts for Cj. They are useful for spotting where the name is showing up in real numbers, while the rank beside each bar shows how strongly it performs inside that region.
Cj ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #311 in 2022.
Across the UK
Cj in Scotland and Northern Ireland
Northern Ireland (NISRA)
#311 in 2022
3 years of NISRA records, 11 total registered
Related
Names similar to Cj
- Charlie 104,761
- Callum 65,796
- Connor 53,072
- Cameron 40,394
- Charles 33,091
- Christopher 26,849
- Caleb 15,553
- Corey 12,622
- Carter 11,505
- Cody 11,075
- Conor 10,298
- Christian 9,695
FAQ
Cj: questions and answers
How popular is the name Cj in the UK right now?
In 2024, Cj was ranked #2088 for boys in England and Wales, with 11 births registered.
When was Cj most popular?
The peak year on record was 2017, with 17 babies registered as Cj in England and Wales.
What is the meaning and origin of Cj?
A masculine diminutive form of Charles or Charles Junior.
How many people are called Cj in the UK?
A total of 200 babies have been registered as Cj across the 22 years of ONS England & Wales records shown here and 11 in Northern Ireland.
Where is Cj most common?
In the latest published local rankings, Cj ranks best in Northern Ireland, where it placed #311 in 2022. The regional bars on this page use birth counts, so they also reflect the size of each region.
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.