girl's name

Cydney

SID-nee (English)

  • Gender Girl
  • Syllables 2
  • Letters 6
  • Popularity Rare
  • Births on record 5,876

Cydney is a girl's name with 2 syllables. In 2025 it was given to 9 babies in the United States. It is a rare choice.

  • Peaked in 2000, when 230 babies were given the name.
  • It has been falling over the past decade.
  • Today about 1 in 368,460 babies in the United States is given this name.
  • First appears in US birth records in 1942.
  • 2 syllables, with the stress on syllable 1.

Cydney Over Time

Births per decade in the United States, 1940s to 2020s. The striped bar is the 2020s, which so far covers 2020 to 2025.

1,775
'40 '50 '60 '70 '80 '90 '00 '10 '20
Show the numbers
Births named Cydney by decade in the United States
Decade Births
1940s 49
1950s 333
1960s 313
1970s 196
1980s 438
1990s 1,775
2000s 1,442
2010s 520
2020s (to 2025) 104

How Popular Is Cydney?

In 2025, Cydney was given to 9 babies in the United States. It is a rare choice.

Where Cydney Is Used

Canada #3,620 5 in 2012
England & Wales #5,686 4 in 2024
United States #10,669 9 in 2025

The bar shows how near the top of each country's list the name sits, on a scale where #1 fills the row and #1,000 is a sliver. The figures beside it are the real rank and the babies recorded that year.

US figures omit any name given to fewer than five babies in a year, so the rarest names are absent from the source rather than absent from use. Data & sources.

Names That Peaked Alongside Cydney

These names rose and fell in the same era, which is why they tend to sound like they belong together.

Parents Who Like Cydney Also Like

Names whose popularity has risen and fallen in step with Cydney over the last century — the same taste, a different name.

How to Say Cydney

  • English SID-nee

Sibling Names for Cydney

Names from the same era that do not rhyme or share an initial with Cydney — the two things that make a sibling set grate.

Common Questions About Cydney

How popular is the name Cydney?

In 2025, Cydney was given to 9 babies in the United States. It is a rare choice.

Is Cydney a girl's or a boy's name?

Cydney is given almost entirely to girls in birth records.

How many syllables are in Cydney?

Cydney has 2 syllables.

When was Cydney most popular?

Cydney peaked in 2000, when 230 babies were given the name. It has been falling over the past decade.

Is Cydney a good name?

That is not something records can settle, but they can tell you what you would be choosing. Cydney currently ranks #10,669 in the United States. It has been falling over the past decade. Everything else — how it sounds with your surname, who it reminds you of — is yours.