How Many People Are Named Fianna?
An estimated 260 people in the United States have the first name Fianna. It is almost exclusively a female name. The average bearer is 13 years old, and Fianna peaked in popularity in 2015 with 24 births that year.
Below you will find a full statistical profile of Fianna 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 Fianna paired with any surname.
Estimated Living Americans
260
About 1 in 1,318,286 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
13
years old
Peak Year
2015
24 births
Total Registered
262
since 1880
Gender Distribution for Fianna
Fianna is almost exclusively a female name. Out of 262 total births registered, 100.0% were female.
Fianna as a female name
Ranked #9,754 in 2024
10 female births in 2024
Peak: 2015 (24 births)
Fianna: Popularity Over Time
SSA records for Fianna span from the 2000s to the 2020s, covering 3 decades of naming data. The most popular decade for this name was the 2010s, when 140 babies were registered. Fianna has declined significantly from its peak in the 2010s. Recent registrations are a fraction of what they were at the name's height.
Fianna by Decade
How has Fianna 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.
Fianna by State
Fianna + Last Name Combinations
How many people share a full name with Fianna as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Fianna
Other first names starting with F with a similar number of bearers.
Fianna: Questions and Answers
How many people in the U.S. are named Fianna?
We estimate approximately 260 people named Fianna 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 1,318,286 Americans share this first name.
Is Fianna a common name?
Fianna is classified as "Very Rare" and is more popular than 77.6% of all first names in the SSA database. A total of 262 births have been registered with this name since 1880.
When was Fianna most popular?
Fianna reached peak popularity in 2015, when 24 babies were given this name. The average age of a living person named Fianna is approximately 13 years old, reflecting when the name was most commonly given.
Is Fianna a female name?
Fianna is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Fianna Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Fianna Smith, Fianna Johnson, Fianna 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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