Cydney
Cydney was given to 9 girls in 2025, #10,269 among girls’ names; 5,170 Americans have been recorded with it since 1942 (Social Security Administration, published May 2026).
An estimated 4,960 Americans named Cydney and born in the U.S. are alive in 2026 (96% of everyone recorded); the median is 29 years old and half are between 22 and 36.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Cydney by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
What does Cydney mean?
Wiktionary, English section
Cydney is “a female given name.”
Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).
How popular is Cydney?
#10,269 among girls’ names, 2025
Cydney fell from #3,714 in 2015 to #10,269 in 2025 among girls’ names; its share of girls born fell from 23.0 to 5.6 per million.
230 babies in 2000, the peak
Cydney peaked in 2000, when 230 babies were given it (225 girls, #947 among girls’ names). The 9 births of 2025 are 4% of that peak.
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2025 | 9 | #10,269 | 0.01 |
| 2024 | 14 | #7,676 | 0.01 |
| 2023 | 10 | #9,765 | 0.01 |
| 2022 | 19 | #6,266 | 0.01 |
| 2021 | 25 | #5,119 | 0.02 |
| 2020 | 27 | #4,787 | 0.02 |
| 2019 | 31 | #4,464 | 0.02 |
| 2018 | 24 | #5,347 | 0.01 |
| 2017 | 39 | #3,861 | 0.02 |
| 2016 | 48 | #3,339 | 0.03 |
Every recorded year (80)
| Year | Births | Rank | Per 1,000 girls |
|---|---|---|---|
| 2015 | 41 | #3,714 | 0.02 |
| 2014 | 60 | #2,849 | 0.03 |
| 2013 | 58 | #2,912 | 0.03 |
| 2012 | 66 | #2,689 | 0.04 |
| 2011 | 69 | #2,594 | 0.04 |
| 2010 | 84 | #2,278 | 0.05 |
| 2009 | 98 | #2,077 | 0.05 |
| 2008 | 104 | #2,011 | 0.05 |
| 2007 | 131 | #1,682 | 0.07 |
| 2006 | 92 | #2,112 | 0.05 |
| 2005 | 135 | #1,527 | 0.07 |
| 2004 | 144 | #1,431 | 0.08 |
| 2003 | 166 | #1,259 | 0.09 |
| 2002 | 177 | #1,162 | 0.10 |
| 2001 | 159 | #1,245 | 0.09 |
| 2000 | 225 | #947 | 0.12 |
| 1999 | 200 | #1,019 | 0.11 |
| 1998 | 227 | #920 | 0.13 |
| 1997 | 218 | #914 | 0.13 |
| 1996 | 212 | #922 | 0.12 |
| 1995 | 203 | #924 | 0.12 |
| 1994 | 197 | #940 | 0.11 |
| 1993 | 144 | #1,203 | 0.08 |
| 1992 | 135 | #1,263 | 0.07 |
| 1991 | 122 | #1,342 | 0.07 |
| 1990 | 103 | #1,501 | 0.05 |
| 1989 | 76 | #1,768 | 0.04 |
| 1988 | 77 | #1,673 | 0.04 |
| 1987 | 54 | #2,046 | 0.03 |
| 1986 | 43 | #2,348 | 0.03 |
| 1985 | 56 | #1,949 | 0.03 |
| 1984 | 40 | #2,389 | 0.02 |
| 1983 | 34 | #2,602 | 0.02 |
| 1982 | 23 | #3,542 | 0.01 |
| 1981 | 16 | #4,576 | 0.01 |
| 1980 | 19 | #4,024 | 0.01 |
| 1979 | 19 | #3,937 | 0.01 |
| 1978 | 24 | #3,213 | 0.02 |
| 1977 | 20 | #3,637 | 0.01 |
| 1976 | 18 | #3,705 | 0.01 |
| 1975 | 24 | #2,983 | 0.02 |
| 1974 | 15 | #4,069 | 0.01 |
| 1973 | 14 | #4,188 | 0.01 |
| 1972 | 19 | #3,299 | 0.01 |
| 1971 | 19 | #3,390 | 0.01 |
| 1970 | 24 | #2,870 | 0.01 |
| 1969 | 27 | #2,535 | 0.02 |
| 1968 | 27 | #2,374 | 0.02 |
| 1967 | 26 | #2,385 | 0.02 |
| 1966 | 24 | #2,461 | 0.01 |
| 1965 | 36 | #1,919 | 0.02 |
| 1964 | 38 | #1,924 | 0.02 |
| 1963 | 37 | #1,926 | 0.02 |
| 1962 | 32 | #2,079 | 0.02 |
| 1961 | 35 | #1,960 | 0.02 |
| 1960 | 31 | #2,066 | 0.02 |
| 1959 | 35 | #1,885 | 0.02 |
| 1958 | 32 | #1,945 | 0.02 |
| 1957 | 41 | #1,684 | 0.02 |
| 1956 | 39 | #1,697 | 0.02 |
| 1955 | 38 | #1,670 | 0.02 |
| 1954 | 36 | #1,706 | 0.02 |
| 1953 | 27 | #1,978 | 0.01 |
| 1952 | 24 | #2,079 | 0.01 |
| 1951 | 23 | #2,070 | 0.01 |
| 1950 | 38 | #1,502 | 0.02 |
| 1949 | 21 | #2,151 | 0.01 |
| 1948 | 13 | #2,859 | 0.01 |
| 1947 | 10 | #3,499 | 0.01 |
| 1942 | 5 | #4,752 | under 0.01 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Cydney a boy’s or a girl’s name?
Cydney has been given almost only to girls: 25 boys in 80 years of records.
Girls and boys named Cydney: the SSA national file counts each sex separately.
How many people are named Cydney, and how old are they?
4,960 alive in 2026, estimated
That is 96% of the 5,170 Americans ever recorded as Cydney. The median Cydney alive today is 29 years old; half are between 22 and 36.
The 2020 Census counted 4,701 people named Cydney (4,624 women and girls, 77 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 4,926 born in the U.S. The Census count is 5% below that prediction.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Silent Generation | 1928-1945 | 2 |
| Baby Boomers | 1946-1964 | 439 |
| Generation X | 1965-1980 | 328 |
| Millennials | 1981-1996 | 1,510 |
| Generation Z | 1997-2012 | 2,280 |
| Generation Alpha | 2013-2025 | 402 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Where are babies named Cydney born?
The states with the most babies named Cydney are California, Texas and Georgia, with 40% of its births recorded by state since 1910.
| State | Since 1910 | Rank, girls | vs. national |
|---|---|---|---|
| California | 460 | not ranked | 0.7× |
| Texas | 357 | not ranked | 0.8× |
| Georgia | 164 | not ranked | 1.1× |
| Illinois | 164 | not ranked | 0.7× |
| Florida | 151 | not ranked | 0.6× |
| New York | 141 | not ranked | 0.4× |
| Ohio | 138 | not ranked | 0.6× |
| Pennsylvania | 103 | not ranked | 0.5× |
| North Carolina | 100 | not ranked | 0.7× |
| Michigan | 98 | not ranked | 0.5× |
Where Cydney is more common than its national share predicts
Relative to its national share, Cydney is most over-represented in Georgia: since 1942 it was given 1.1 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among girls’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Cydney with the births its national share predicts year by year, for states with at least 100 births of the name.
How common is the spelling Cydney?
Cydney is a less common spelling of Sydney: SSA has recorded 5,170 Cydney and 187,700 Sydney since 1880.
Of these 8 names spelled alike, given to 195,956 babies since 1880, Cydney is the second most given (2.6% of them). In 2025 it was given to 9 of their 902 babies (<1%), again the second most given.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Cydney
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Cydney and names like it
- Compare Cydney and SydneyBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2000sCydney peaked in 2000.
- California’s most given namesThe state where SSA recorded the most babies named Cydney since 1910.
- The top names of 2000The year the most babies were named Cydney.
- The names of Generation ZMost people named Cydney alive today were born 1997-2012.
- Names starting with CMost given first.