How Many People Are Named Cybill?
An estimated 125 people in the United States have the first name Cybill. It is almost exclusively a female name. The average bearer is 44 years old, and Cybill peaked in popularity in 1973 with 31 births that year.
Below you will find a full statistical profile of Cybill as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Cybill paired with any surname.
Estimated Living Americans
125
About 1 in 2,742,035 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
44
years old
Peak Year
1973
31 births
Total Registered
135
since 1880
Gender Distribution for Cybill
Cybill is almost exclusively a female name. Out of 135 total births registered, 100.0% were female.
Cybill as a female name
Ranked #14,221 in 1997
5 female births in 1997
Peak: 1973 (31 births)
Cybill: Popularity Over Time
SSA records for Cybill span from the 1970s to the 1990s, covering 3 decades of naming data. The most popular decade for this name was the 1970s, when 64 babies were registered. While Cybill is less common than at its peak in the 1970s, it remains a well-established name with steady registrations.
Cybill by Decade
How has Cybill tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Cybill + Last Name Combinations
How many people share a full name with Cybill as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Cybill
Other first names starting with C with a similar number of bearers.
Cybill: Questions and Answers
How many people in the U.S. are named Cybill?
We estimate approximately 125 people named Cybill are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 2,742,035 Americans share this first name.
Is Cybill a common name?
Cybill is classified as "Very Rare" and is more popular than 67.8% of all first names in the SSA database. A total of 135 births have been registered with this name since 1880.
When was Cybill most popular?
Cybill reached peak popularity in 1973, when 31 babies were given this name. The average age of a living person named Cybill is approximately 44 years old, reflecting when the name was most commonly given.
Is Cybill a female name?
Cybill is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Cybill Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Cybill Smith, Cybill Johnson, Cybill Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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