Cydney: Name Popularity, History & Rankings (1880

Rank 2025

#10,273

among girls · ↓2,593 vs 2024

Babies in 2025

named Cydney

How common

1 in 178,585

girls born in 2025

Peak year

2000

230 babies

All-time total

5,170

#2,525 all-time among girls

First recorded

1942

in Social Security records

Cydney popularity over time

5,170 babies have been named Cydney since 1942, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure

Births per 1,000 babies of that sex, comparable across eras

GirlsBoys

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade	Girls	Boys	Total	Per year	Change	Best rank
1880s	–	–	–	–	–	–
1890s	–	–	–	–	–	–
1900s	–	–	–	–	–	–
1910s	–	–	–	–	–	–
1920s	–	–	–	–	–	–
1930s	–	–	–	–	–	–
1940s	49	–	49	5	–	#2,152
1950s	333	–	333	33	+580%	#1,503
1960s	313	–	313	31	-6%	#1,919
1970s	196	–	196	20	-37%	#2,870
1980s	438	–	438	44	+123%	#1,674
1990s	1,761	14	1,775	178	+305%	#915
2000s	1,431	11	1,442	144	-19%	#948
2010s	520	–	520	52	-64%	#2,278
2020s (to 2025)	104	–	104	17	-67%	#4,789

The story of Cydney

Cydney is rare for girls in the United States, ranked #10,273 in 2025 with 9 babies given the name. It is currently declining compared with a decade ago.

Since 1942, 5,170 American babies have been named Cydney. Its peak came in 2000, when 230 newborns received the name, the signature sound of the 2000s.

The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Cydney stood among all girls' names in any year, or use the compare tool to plot it against other names.

How old are people named Cydney?

The median living Cydney is about 28 years old; half are between 21 and 35. An estimated 5,000 people named Cydney are alive in the United States today.

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Cydney year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year	Girls	Girls rank	Boys	Boys rank
2025	9	#10,273	–	–
2024	14	#7,680	–	–
2023	10	#9,770	–	–
2022	19	#6,271	–	–
2021	25	#5,123	–	–
2020	27	#4,789	–	–
2019	31	#4,465	–	–
2018	24	#5,351	–	–
2017	39	#3,862	–	–
2016	48	#3,339	–	–
2015	41	#3,715	–	–
2014	60	#2,851	–	–
2013	58	#2,913	–	–
2012	66	#2,689	–	–
2011	69	#2,595	–	–
2010	84	#2,278	–	–
2009	98	#2,077	–	–
2008	104	#2,011	–	–
2007	131	#1,682	–	–
2006	92	#2,112	–	–
2005	135	#1,527	6	#10,355
2004	144	#1,432	–	–
2003	166	#1,260	–	–
2002	177	#1,163	–	–
2001	159	#1,246	–	–
2000	225	#948	5	#10,685
1995	203	#927	6	#7,989
1990	103	#1,505	–	–
1985	56	#1,950	–	–
1980	19	#4,025	–	–
1975	24	#2,983	–	–
1970	24	#2,870	–	–
1965	36	#1,919	–	–
1960	31	#2,067	–	–
1955	38	#1,671	–	–
1950	38	#1,503	–	–
1945	–	–	–	–
1940	–	–	–	–
1935	–	–	–	–
1930	–	–	–	–
1925	–	–	–	–
1920	–	–	–	–
1915	–	–	–	–
1910	–	–	–	–
1905	–	–	–	–
1900	–	–	–	–
1895	–	–	–	–
1890	–	–	–	–
1885	–	–	–	–
1880	–	–	–	–

Frequently asked questions

Quick answers about Cydney, drawn from the same Social Security data as the charts above.

How old is the average Cydney?

The median living Cydney is about 28 years old. Half of all living Cydneys are between 21 and 35 years old.

How many people named Cydney are alive today?

An estimated 5,000 people named Cydney are alive in the United States, based on 5,170 recorded births and Social Security life tables.

How popular is the name Cydney in 2025?

Cydney ranked #10,273 among girls' names in the United States in 2025, with 9 babies given the name, according to Social Security Administration data.

How many people are named Cydney?

5,170 babies have been named Cydney in the United States since 1942, based on Social Security card applications.

When was the name Cydney most popular?

Cydney peaked in 2000, when 230 newborns received the name.

Is Cydney a boy or girl name?

Cydney is overwhelmingly a girl's name: 100% of babies with the name.

Is the name Cydney rising or falling?

Cydney is declining, less popular now than a decade ago.

Names like Cydney

Names that sound and feel close to Cydney: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Cydney with similar names → More names starting with C →