Cydnee
Torn between Cydnee and another name? Compare them side by side →
Meaning
a variant of Sydney, from a surname that is another form of the English surname Sidney, from place names meaning "wide island"
How popular is Cydnee around the world?
In the United States, 9 babies were named Cydnee between 2020 and 2025.
Cydnee is on the official records of the United States.
United States
1 in 2.4M
In the United States, 9 babies were named Cydnee between 2020 and 2025.
Shape drawn from US Social Security baby-name records. Cydnee has stayed rare in US records the whole time: no peak decade to name.
Births with a Social Security record. Source: U.S. Social Security Administration
Canada
last on record 1996
Cydnee is not on the 2024 record for Canada, where names under 5 in a year are excluded at source.
The count never rose above 6 in a year, too few to chart.
First given names from provincial and territorial vital statistics across Canada; any name-sex-year under 5 is excluded at source, and small Quebec counts carry a randomized adjustment made at source. Shares divide by Statistics Canada’s count of live births for the year; the 2024 count is preliminary. Source: Statistics Canada, first names at birth (table 17-10-0147-01)
England and Wales
last on record 2014
Cydnee is not on the 2025 record for England and Wales, where spellings under 3 in a year are withheld at source.
The count never rose above 6 in a year, too few to chart.
Birth registrations in England and Wales (not the whole UK); exact spellings are counted separately, and any spelling under 3 in a year is withheld at source. Source: Office for National Statistics, baby names in England and Wales
Not on 14 other recordsWhy
- Not on the record in Spain, Mexico City, Argentina, Puerto Rico, Ireland, New Zealand, Scotland and Poland: those registries withhold small counts, so rare uses may sit below their floors.
- Not on the Chile record: nametree keeps spellings that reached 5 registrations in some year, so rarer uses are not shown.
- Not on the Montevideo record for 1940 to 2011: that registry withholds nothing, so this spelling was not given there in those years.
- Not on the France record: nametree keeps spellings that reached 20 births in some year, so rarer uses are not shown.
- Not on the South Australia record for 1944 to 2017: that registry withholds nothing, so this spelling was not given there in those years.
- Not on the Austria record for 1984 to 2025: Statistik Austria publishes every first name down to a single birth, so this name was not given there in those years (before 2010 the record covers babies with Austrian citizenship only).
- Not on Norway’s list: Statistics Norway lists only first names carried by 200 or more living people, so rarer names are not shown.
When you meet Cydnee
Most people given the name Cydnee in the United States are teenagers or young adults today.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
The Cydnee deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Cydnee truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Cydnee fits with your family’s names and surname.
Does Cydnee fit YOUR family?
nametree reads your family’s names and finds the ones that belong. Free, private, no ads.
Add Cydnee to your family’s tree →