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Home › Baby Names Directory › Dillen

Dillen

♂ Boy

How to Pronounce Dillen

Pronounced DIL-uhn /ˈdɪl.ən/Medium

Meaning: Dillen is a respelling of Dylan, a Welsh mythological name built from elements meaning 'great' and 'sea' or 'tide'. The variant inherits Dylan's sea meaning; the -llen shape is a phonetic Americanized spelling.Low

In 30 seconds: Dillen is a rare spelling of Dylan, Welsh for 'great tide' or 'son of the sea', said 'DIL-uhn'.
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Origin LowWelsh
MeaningDillen is a respelling of Dylan, a Welsh mythological name built from elements meaning 'great' and 'sea' or 'tide'. The variant inherits Dylan's sea meaning; the -llen shape is a phonetic Americanized spelling.
U.S. rank (2023)#12686 ↘ Falling
2023 U.S. births5 boys (0.00% of U.S. boys)
Peak year2003
Total births (all-time)≈ 691
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Popularity in the U.S. · SSA data

peak 200319912023

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Dillen is a phonetic respelling of the popular Dylan, a name from Welsh legend borne by a sea-associated figure and traditionally glossed 'great tide' or 'son of the sea'. The spelling reflects the American ear for the name rather than any separate origin.

It appeared alongside Dylan's decades-long popularity, crested in the early two-thousands, and stayed uncommon as a variant. A boy named Dillen is likely a millennial, and the spelling has not overtaken the standard Dylan.

Did you know? Dillen rode the long Dylan boom but only as a fringe spelling, given to just a few dozen boys a year at its 2003 peak.
Overall data confidence 55%
References - Dillen — variant of Dylan < Welsh 'great tide'

Variations

DylanDillonDylon

Nicknames

DillLen

Famous Bearers

  • Famous bearers coming soon.

If you like Dillen…

Dylan— the standard name Dillen respells
Dillon— a common surname-style sister spelling
Dylon— another phonetic variant of Dylan
Killian— a like Celtic-flavored -llian boy's name

Explore names like Dillen

By themerarevariantceltic

All themes →All meanings →All origins →

Frequently Asked

What does the name Dillen mean?

Dillen is a variant of Dylan, a Welsh name usually read as 'great tide' or 'son of the sea'.

How do you pronounce Dillen?

It's said DIL-uhn /ˈdɪl.ən/ - two syllables, stress on the first.

Is Dillen a boy or girl name?

Dillen is used as a boy's name.

How popular is Dillen?

Dillen was always a rare spelling of Dylan, cresting in the early two-thousands.

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