MallowbyNames

Deylan

DAY-lən · Uncertain; likely a modern variant of Dylan, which may mean 'son of the sea' or 'born from the ocean' in Welsh.

2025 rank (boys)
#4,707
Babies named in 2025
21
Peak popularity
2023
2025 frequency
1 in 81,337 boys
Usually for
Boys
Trend
Rising since 2006

Rising since 2006, #4,707 for boys today.

Popularity of Deylan since 1999

Babies named Deylan per year in U.S. Social Security records.

81523200020102020Most births 2023Boys
Data table (by decade)
DecadeBoys
1990s7
2000s22
2010s56
2020s79

Meaning & origin

Deylan is a modern respelling of the classic Welsh name Dylan, a choice that reflects the contemporary trend of tailoring traditional names with unique spellings. First recorded in the United States in 1999, Deylan has seen a steady climb in usage, particularly since 2006. By 2025, it ranked 4,707 nationally, with a peak in 2023, and was most common in California. While it remains relatively rare (about 1 in 81,337 births), its trajectory suggests growing appeal among parents seeking a familiar sound with a distinctive look. Deylan's pronunciation is straightforward, and its connection to the mythological Dylan provides a subtle nod to Welsh heritage, even as the altered spelling distances it from the original.

Deylan is a modern respelling of Dylan, a name of Welsh origin from the mythological figure Dylan ail Don (Dylan son of the Wave). The traditional Dylan derives from the Welsh elements 'dy' (great) and 'llanw' (sea, flood). As a contemporary variant, Deylan emerged in the late 20th century, gaining modest usage alongside other creative spellings like Daylen and Deylen.

Where Deylan is most popular

Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.

Nicknames & variants

Nicknames: Dey, Lanny

Variants: Dylan, Daylen, Deylen, Daley

Sibling names for Deylan

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

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

D is for Deylan, our favorite little boy.

D is for Deylan…”

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

Make Deylan's book

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

Questions parents ask

What does the name Deylan mean?
Deylan is a modern variant of Dylan, a Welsh name that likely means 'son of the sea' or 'born from the ocean.' Its exact meaning is uncertain due to its respelled form.
How popular is the name Deylan?
Deylan ranked 4,707 in 2025, with approximately 1 in 81,337 babies receiving the name. Its popularity has been rising since 2006, peaking in 2023.
Is Deylan a boy or girl name?
Deylan is primarily used as a boy's name, consistent with its root name Dylan, though it is occasionally used for girls.