How Many People Are Named Defne?
An estimated 620 people in the United States have the first name Defne. It is almost exclusively a female name. The average bearer is 13 years old, and Defne peaked in popularity in 2017 with 51 births that year.
Below you will find a full statistical profile of Defne 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 Defne paired with any surname.
Estimated Living Americans
620
About 1 in 552,830 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
13
years old
Peak Year
2017
51 births
Total Registered
626
since 1880
Gender Distribution for Defne
Defne is almost exclusively a female name. Out of 626 total births registered, 100.0% were female.
Defne as a female name
Ranked #4,295 in 2024
33 female births in 2024
Peak: 2017 (51 births)
Defne: Popularity Over Time
SSA records for Defne span from the 1990s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2010s, when 316 babies were registered. While Defne is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Defne by Decade
How has Defne 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.
Defne by State
Birth registrations for Defne span all 5 states and territories in the SSA database. The highest counts are in California, New York, Texas. The lowest are in Florida, New Jersey, Texas. On average, about 27 Defnes were registered per state.
Defne + Last Name Combinations
How many people share a full name with Defne as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Defne
Other first names starting with D with a similar number of bearers.
Defne: Questions and Answers
How many people in the U.S. are named Defne?
We estimate approximately 620 people named Defne 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 552,830 Americans share this first name.
Is Defne a common name?
Defne is classified as "Very Rare" and is more popular than 86.5% of all first names in the SSA database. A total of 626 births have been registered with this name since 1880.
When was Defne most popular?
Defne reached peak popularity in 2017, when 51 babies were given this name. The average age of a living person named Defne is approximately 13 years old, reflecting when the name was most commonly given.
Is Defne a female name?
Defne is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Defne Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Defne Smith, Defne Johnson, Defne 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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