UK girl's name
Cydnee
Feminine form of Sidney, itself derived from the surname Sydney of uncertain meaning.
For 2026, the newest official UK baby-name figures on this page are from 2014. That release is the current official benchmark rather than a forecast.
Cydnee is a girl's name in the UK records. People looking for Cydnee popularity in 2026 should use the latest official release, which is 2014 in this profile. In that release it ranked #5691, with 3 babies registered with the name. Its strongest year in the published records was 2007, with 6 births.
This profile covers 41 England and Wales registrations across 10 recorded years from 1996 to 2014. 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 50% of the recorded peak, which gives a quick read on how the name has moved since its high point.
We estimate that about 41 living people in the UK are called Cydnee. 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 2015 or 2026.
Key insights
- • Cydnee ranked #5691 for girls in England and Wales in 2014, with 3 registrations.
- • The name peaked in 2007, when 6 girls were registered as Cydnee.
- • About 41 living people in the UK are estimated to have Cydnee as a first name, after adjusting past birth registrations with ONS life tables.
Latest rank (E&W)
#5691
2014
Births in 2014
3
Latest year
Peak year
2007
6 births
Estimated living
41
2026
Meaning
What does Cydnee mean?
The name Cydnee is a relatively modern variant of the name Sydney, which itself is an English derivation of the French name Sidonie. The name Sidonie has its roots in the ancient Greek name Sidonia, which was derived from the word "Sidon," referring to the ancient Phoenician city of Sidon, located in modern-day Lebanon.
Sidon was an important maritime city in the ancient world, and its name was often used as a personal name among the Phoenicians and Greeks. The name Sidonia was likely adopted by the Greeks as a way of honoring the city and its cultural significance.
The earliest recorded use of the name Sidonia dates back to the 4th century BC, when it was mentioned in ancient Greek texts and inscriptions. In the centuries that followed, the name spread throughout the Mediterranean region and eventually made its way to Europe.
One of the earliest known individuals with the name Sidonia was Sidonia of Poitiers, a 5th-century Gallo-Roman saint who was martyred for her Christian faith. Another notable bearer of the name was Sidonia of Saxony, a 12th-century German noblewoman who was the wife of Albert the Bear, the first Margrave of Brandenburg.
As the name evolved and spread throughout Europe, it underwent various spelling and pronunciation changes, eventually leading to the English variant Sydney. The earliest recorded use of the name Sydney dates back to the 16th century, when it was used as both a masculine and feminine name.
One of the most famous individuals with the name Sydney was Sir Philip Sidney, an English poet, courtier, and soldier who lived from 1554 to 1586. Another well-known bearer of the name was Sydney Parkinson, an 18th-century Scottish botanical illustrator who accompanied Captain James Cook on his first voyage to the Pacific.
The name Cydnee is a more recent variation of Sydney, likely emerging in the late 20th century as a way to create a more unique and modern spelling of the name. While not as widely used as the traditional spellings of Sydney or Sidonie, Cydnee has gained some popularity in recent decades, particularly in English-speaking countries.
Notable individuals with the name Cydnee include Cydnee Sampson, an American actress and model; Cydnee Michaels, an American professional wrestler; and Cydnee Black, an American singer and songwriter.
Sourced from namecensus.com.
Popularity
Cydnee over time
The chart below shows babies named Cydnee registered in England and Wales in the years where the name appears in the published records, from 1996 to 2014. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.
For Cydnee, the clearest high point is 2007. The latest England and Wales figure is 3 births in 2014, compared with 6 at the peak.
Babies born per year
Decades
Cydnee by decade
Decade totals smooth out the yearly jumps and make it easier to see whether Cydnee 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 | #5691 | 3 | 1 |
| 2000s | #3836 | 33 | 8 |
| 1990s | #2683 | 5 | 1 |
Related
Names similar to Cydnee
- 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
Cydnee: questions and answers
How popular is the name Cydnee in the UK right now?
In 2014, Cydnee was ranked #5691 for girls in England and Wales, with 3 births registered.
When was Cydnee most popular?
The peak year on record was 2007, with 6 babies registered as Cydnee in England and Wales.
What is the meaning and origin of Cydnee?
Feminine form of Sidney, itself derived from the surname Sydney of uncertain meaning.
How many people are called Cydnee in the UK?
A total of 41 babies have been registered as Cydnee across the 10 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.