MallowbyNames

Delwyn

DEL-win · Fair friend or bright friend, from the Welsh elements del (fair, bright) and gwyn (white, blessed).

2025 rank (boys)
#12,008
Babies named in 2025
5
Peak popularity
1935
2025 frequency
1 in 341,615 boys
Usually for
Boys
Trend
Holding steady

Holding steady, #12,008 for boys today.

Popularity of Delwyn since 1917

Babies named Delwyn per year in U.S. Social Security records. Raw births topped out in 1959, but relative to how few babies were recorded back then, Delwyn's real moment was 1935.

91928192019602000Most births 1959Boys
Data table (by decade)
DecadeBoys
1910s21
1920s71
1930s137
1940s150
1950s158
1960s123
1970s88
1980s71
1990s30
2000s37
2010s27
2020s5

Meaning & origin

Delwyn is a traditional Welsh name with a meaning rooted in fairness and brightness. First recorded in the U.S. in 1917, it reached its peak popularity in 1935, during the height of Welsh cultural pride in America. Today, it is exceedingly rare: in 2025, only about 1 in 341,615 newborns received the name, placing it at rank 12,008. Despite its decline, the name has remained in steady, minimal use, never experiencing a major revival. Its top states are not recorded, suggesting a very scattered distribution. Delwyn offers a distinctive choice for parents seeking a genuine Welsh name with a soft, melodic sound.

Delwyn is a Welsh name derived from the elements del, meaning 'fair' or 'bright,' and gwyn, meaning 'white,' 'blessed,' or 'holy.' It is a traditional Welsh masculine name, though it has occasionally been used for girls. The name was most popular in the early 20th century, particularly in Wales and among Welsh communities abroad, but has since declined in common use.

Nicknames & variants

Nicknames: Del, Wyn

Variants: Delwin

Sibling names for Delwyn

Names that share Delwyn's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

D is for Delwyn, our favorite little boy.

D is for Delwyn…”

In a Mallowby alphabet book, Delwyn's letter becomes Delwyn's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Delwyn's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Delwyn mean?
Delwyn means 'fair friend' or 'bright friend,' from the Welsh elements del (fair, bright) and gwyn (white, blessed).
How popular is Delwyn?
Delwyn is a rare name. In 2025, it ranked 12,008th in the U.S., with about 1 in every 341,615 newborns given the name.
Is Delwyn a boy's or girl's name?
Delwyn is traditionally a boy's name, though it has occasionally been used for girls.