How Many People Are Named Delwyn?
An estimated 574 people in the United States have the first name Delwyn. It is almost exclusively a male name. The average bearer is 58 years old, and Delwyn peaked in popularity in 1959 with 28 births that year.
Below you will find a full statistical profile of Delwyn 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 Delwyn paired with any surname.
Estimated Living Americans
574
About 1 in 597,133 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
58
years old
Peak Year
1959
28 births
Total Registered
913
since 1880
Gender Distribution for Delwyn
Delwyn is almost exclusively a male name. Out of 913 total births registered, 100.0% were male.
Delwyn as a male name
Ranked #8,973 in 2014
8 male births in 2014
Peak: 1959 (28 births)
Delwyn: Popularity Over Time
SSA records for Delwyn span from the 1910s to the 2010s, covering 11 decades of naming data. The most popular decade for this name was the 1950s, when 158 babies were registered. Delwyn has declined significantly from its peak in the 1950s. Recent registrations are a fraction of what they were at the name's height.
Delwyn by Decade
How has Delwyn 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.
Delwyn by State
Delwyn + Last Name Combinations
How many people share a full name with Delwyn as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Delwyn
Other first names starting with D with a similar number of bearers.
Delwyn: Questions and Answers
How many people in the U.S. are named Delwyn?
We estimate approximately 574 people named Delwyn 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 597,133 Americans share this first name.
Is Delwyn a common name?
Delwyn is classified as "Very Rare" and is more popular than 85.8% of all first names in the SSA database. A total of 913 births have been registered with this name since 1880.
When was Delwyn most popular?
Delwyn reached peak popularity in 1959, when 28 babies were given this name. The average age of a living person named Delwyn is approximately 58 years old, reflecting when the name was most commonly given.
Is Delwyn a male name?
Delwyn is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Delwyn Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Delwyn Smith, Delwyn Johnson, Delwyn 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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