How Many People Are Named Dian?
An estimated 3,335 people in the United States have the first name Dian. It is predominantly female (96.4%). The average bearer is 66 years old, and Dian peaked in popularity in 1946 with 287 births that year.
Below you will find a full statistical profile of Dian 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 Dian paired with any surname.
Key Insights
- While Dian is overwhelmingly female, 198 male births have been registered with this name since 1880.
- With an average bearer age of 66, Dian is a vintage name most associated with earlier generations. Most living bearers were born before 1970.
Estimated Living Americans
3,335
About 1 in 102,775 people in the U.S.
Rarity
Rare
Predicted Gender
Female
96.4% confidence
Average Age
66
years old
Peak Year
1946
287 births
Total Registered
5,566
since 1880
Gender Distribution for Dian
Dian is predominantly female (96.4%), though 198 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Dian as a male name
Ranked #5,484 in 2024
17 male births in 2024
Peak: 2020 (20 births)
Dian as a female name
Ranked #17,169 in 2015
5 female births in 2015
Peak: 1946 (287 births)
Dian: Popularity Over Time
SSA records for Dian span from the 1910s to the 2020s, covering 12 decades of naming data. The most popular decade for this name was the 1940s, when 1,978 babies were registered. Dian has declined significantly from its peak in the 1940s. Recent registrations are a fraction of what they were at the name's height.
Dian by Decade
How has Dian 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.
Dian by State
Birth registrations for Dian span all 33 states and territories in the SSA database. The highest counts are in California, Texas, Pennsylvania. The lowest are in South Carolina, Kansas, Virginia. On average, about 84 Dians were registered per state.
Dian + Last Name Combinations
How many people share a full name with Dian as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Dian
Other first names starting with D with a similar number of bearers.
Dian: Questions and Answers
How many people in the U.S. are named Dian?
We estimate approximately 3,335 people named Dian 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 102,775 Americans share this first name.
Is Dian a common name?
Dian is classified as "Rare" and is more popular than 95.5% of all first names in the SSA database. A total of 5,566 births have been registered with this name since 1880.
When was Dian most popular?
Dian reached peak popularity in 1946, when 287 babies were given this name. The average age of a living person named Dian is approximately 66 years old, reflecting when the name was most commonly given.
Is Dian a female name?
Dian is predominantly female. 96.4% of people with this name are female. See the gender breakdown above for full details.
How many Dian Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Dian Smith, Dian Johnson, Dian 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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