UK girl's name
Cydni
A feminine variant of Sidney, possibly alluding to a female resident of Sydney.
For 2026, the newest official UK baby-name figures on this page are from 2010. That release is the current official benchmark rather than a forecast.
Cydni is a girl's name in the UK records. People looking for Cydni popularity in 2026 should use the latest official release, which is 2010 in this profile. In that release it ranked #4688, with 4 babies registered with the name. Its strongest year in the published records was 1998, with 5 births.
This profile covers 12 England and Wales registrations across 3 recorded years from 1998 to 2010. 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 80% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 12 living people in the UK are called Cydni. 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 2011 or 2026.
Key insights
- • Cydni ranked #4688 for girls in England and Wales in 2010, with 4 registrations.
- • The name peaked in 1998, when 5 girls were registered as Cydni.
- • About 12 living people in the UK are estimated to have Cydni as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#4688
2010
Births in 2010
4
Latest year
Peak year
1998
5 births
Estimated living
12
2026
Meaning
What does Cydni mean?
The name Cydni is a relatively modern variant spelling of the female name Cynthia, which has its origins in ancient Greek mythology. Cynthia was an epithet of the Greek moon goddess Artemis, derived from Mount Cynthus on the island of Delos, where she was born.
The name Cynthia first appeared in literature in the works of the Roman poet Propertius, who wrote in the 1st century BC. He used the name to refer to a woman he loved, likely inspired by the moon goddess. Over time, the name gained popularity among the ancient Romans and Greeks.
One of the earliest recorded individuals with the name Cynthia was Cynthia Calventia, a Roman woman who lived in the 1st century AD and was mentioned in an inscription found in Pompeii. Another notable early bearer of the name was Cynthia, the wife of the Roman poet Propertius, who was the subject of his famous elegies.
In the Middle Ages, the name Cynthia fell out of favor, but it experienced a revival during the Renaissance period, particularly in England. One of the earliest recorded English women with the name was Cynthia, the daughter of Sir Walter Raleigh, who was born in the late 16th century.
During the 17th and 18th centuries, the name Cynthia became associated with literature and poetry. It was used as a character's name in works by authors such as Edmund Spenser and John Dryden. The name also appeared in the writings of Alexander Pope, who used it to personify the moon in his poem "The Rape of the Lock."
In more recent history, the variant spelling Cydni emerged as a modern form of the name. One of the earliest notable individuals with this spelling was Cydni Lauper, an American singer-songwriter and actress born in 1953. She is best known for her hit songs "Girls Just Want to Have Fun" and "Time After Time."
Other notable individuals with the name Cydni include Cydni Moree, an American model and actress born in 1985, and Cydni Tetro, an American professional wrestler born in 1986. Additionally, Cydni Wilkes is an American basketball player who has competed in the WNBA since 2018.
Sourced from namecensus.com.
Popularity
Cydni over time
The chart below shows babies named Cydni registered in England and Wales in the years where the name appears in the published records, from 1998 to 2010. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Cydni, the clearest high point is 1998. The latest England and Wales figure is 4 births in 2010, compared with 5 at the peak.
Babies born per year
Decades
Cydni by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Cydni 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 |
|---|---|---|---|
| 2010s | #4688 | 4 | 1 |
| 2000s | #3998 | 3 | 1 |
| 1990s | #2701 | 5 | 1 |
Related
Names similar to Cydni
- Chloe 111,265
- Charlotte 88,733
- Caitlin 28,931
- Courtney 23,162
- Chelsea 13,049
- Clara 9,435
- Connie 8,402
- Catherine 8,376
- Charlie 7,964
- Cerys 7,506
- Casey 7,018
- Cara 6,375
FAQ
Cydni: questions and answers
How popular is the name Cydni in the UK right now?
In 2010, Cydni was ranked #4688 for girls in England and Wales, with 4 births registered.
When was Cydni most popular?
The peak year on record was 1998, with 5 babies registered as Cydni in England and Wales.
What is the meaning and origin of Cydni?
A feminine variant of Sidney, possibly alluding to a female resident of Sydney.
How many people are called Cydni in the UK?
A total of 12 babies have been registered as Cydni across the 3 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.