How Many People Are Named Gyllian?
An estimated 28 people in the United States have the first name Gyllian. It is almost exclusively a female name. The average bearer is 24 years old, and Gyllian peaked in popularity in 2001 with 7 births that year.
Below you will find a full statistical profile of Gyllian 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 Gyllian paired with any surname.
Key Insights
- Gyllian is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
28
About 1 in 12,241,226 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
24
years old
Peak Year
2001
7 births
Total Registered
29
since 1880
Gender Distribution for Gyllian
Gyllian is almost exclusively a female name. Out of 29 total births registered, 100.0% were female.
Gyllian as a female name
Ranked #17,957 in 2010
5 female births in 2010
Peak: 2001 (7 births)
Gyllian: Popularity Over Time
SSA records for Gyllian span from the 1990s to the 2010s, covering 3 decades of naming data. The most popular decade for this name was the 2000s, when 19 babies were registered. Gyllian has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Gyllian by Decade
How has Gyllian 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.
Gyllian + Last Name Combinations
How many people share a full name with Gyllian as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Gyllian
Other first names starting with G with a similar number of bearers.
Gyllian: Questions and Answers
How many people in the U.S. are named Gyllian?
We estimate approximately 28 people named Gyllian 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 12,241,226 Americans share this first name.
Is Gyllian a common name?
Gyllian is classified as "Very Rare" and is more popular than 45.4% of all first names in the SSA database. A total of 29 births have been registered with this name since 1880.
When was Gyllian most popular?
Gyllian reached peak popularity in 2001, when 7 babies were given this name. The average age of a living person named Gyllian is approximately 24 years old, reflecting when the name was most commonly given.
Is Gyllian a female name?
Gyllian is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Gyllian Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Gyllian Smith, Gyllian Johnson, Gyllian 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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