Cy
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Meaning
short form of Cyrus, traditionally 'throne' or 'sun'
How popular is Cy around the world?
In the United States, 362 babies were named Cy between 2020 and 2025. In South Australia, 1 boy was registered as Cy in 2017.
Cy is on the official records of the United States, South Australia and Canada.
United States
1 in 60,000
In the United States, 362 babies were named Cy between 2020 and 2025.
Shape drawn from US Social Security baby-name records. Cy peaked in the 2000s and the 2020s in nearly equal measure.
Births with a Social Security record. Source: U.S. Social Security Administration
South Australia
1 in 18,0002017
In South Australia, 1 boy was registered as Cy in 2017.
The count never rose above 2 in a year, too few to chart.
Births registered in South Australia (not all of Australia) by first name and year of registration, 1944–2017, from the state’s Births, Deaths and Marriages registry, which publishes every name down to a single birth in capitals; a spelling its export repeats inside a year is counted once, and from 2018 only a top 100 is published, so the series ends at 2017. Source: Consumer and Business Services (South Australia), popular baby names
Canada
1 in 73,000
In Canada, 5 boys named Cy were born in 2024, ranked 3,231st among boys that year.
The count never rose above 8 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 2024
Cy is not on the 2025 record for England and Wales, where spellings under 3 in a year are withheld at source.
share of that year’s name registrations
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 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 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 Cy
Most people given the name Cy 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.
Keep exploring
The Cy deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Cy 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 Cy fits with your family’s names and surname.
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