UK girl's name
Cydney
A feminine name of Greek origin meaning "woman from Sidon".
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.
Cydney is a girl's name in the UK records. People looking for Cydney popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #4843, with 4 babies registered with the name. Its strongest year in the published records was 2003, with 46 births.
This profile covers 500 England and Wales registrations across 28 recorded years from 1996 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 9% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 497 living people in the UK are called Cydney. 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
- • Cydney ranked #4843 for girls in England and Wales in 2024, with 4 registrations.
- • The name peaked in 2003, when 46 girls were registered as Cydney.
- • About 497 living people in the UK are estimated to have Cydney as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#4843
2024
Births in 2024
4
Latest year
Peak year
2003
46 births
Estimated living
497
2026
Meaning
What does Cydney mean?
The name Cydney is a modern English variant of the name Sydney, which itself is an anglicized form of the French place name Saint-Denis. Saint-Denis was the name of a Christian martyr and saint who lived in the 3rd century AD and was the first bishop of Paris. The name ultimately derives from the ancient Greek name Dionysios, meaning "belonging to Dionysus" or "follower of Dionysus", the Greek god of wine, vegetation, pleasure, festivity, and wild frenzy.
While the name Sydney has been in use in English since the Middle Ages, the spelling variant Cydney is relatively new, first appearing in the early 20th century. It is believed to have originated as a feminized form of the masculine name Sidney, itself an anglicized version of the French Saint-Denis.
The earliest known bearer of the name Cydney was Cydney Dinsmore, an American actress born in 1906 in Kansas City, Missouri. She appeared in several films throughout the 1930s and 1940s, including roles in The Gay Bride (1935) and Swing Parade of 1946 (1946).
Another notable historical figure named Cydney was Cydney Wilkes, an American track and field athlete who competed in the long jump and shot put events. She won a gold medal in the long jump at the 1948 Summer Olympics in London.
In the world of literature, Cydney Krone was an American author and illustrator best known for her children's books, including the popular series Amber Brown. She was born in 1943 and published her first book, Amber Brown Is Not a Crayon, in 1994.
Cydney O'Sullivan was an Irish-American businesswoman and entrepreneur who founded the cosmetics company O'Sullivan Cosmetics in the 1960s. She was born in 1925 in Dublin, Ireland, and her company was one of the first to introduce mineral-based makeup products to the market.
Another notable figure named Cydney was Cydney Bernard, an American lawyer and civil rights activist. She was born in 1933 and played a key role in the desegregation of public schools in the United States in the 1950s and 1960s.
Sourced from namecensus.com.
Popularity
Cydney over time
The chart below shows babies named Cydney registered in England and Wales in the years where the name appears in the published records, from 1996 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 Cydney, the clearest high point is 2003. The latest England and Wales figure is 4 births in 2024, compared with 46 at the peak.
Babies born per year
Decades
Cydney by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Cydney 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 | #4337 | 18 | 4 |
| 2010s | #3337 | 82 | 10 |
| 2000s | #1004 | 282 | 10 |
| 1990s | #782 | 118 | 4 |
Related
Names similar to Cydney
- 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
Cydney: questions and answers
How popular is the name Cydney in the UK right now?
In 2024, Cydney was ranked #4843 for girls in England and Wales, with 4 births registered.
When was Cydney most popular?
The peak year on record was 2003, with 46 babies registered as Cydney in England and Wales.
What is the meaning and origin of Cydney?
A feminine name of Greek origin meaning "woman from Sidon".
How many people are called Cydney in the UK?
A total of 500 babies have been registered as Cydney across the 28 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.