Dillian
Masculine
Dillian is an American name of the late eighties and nineties, built from Dillon or Dylan with the -ian of Julian and Brian. Its first syllable is the herb dill, which folk etymology connects to lulling babies to sleep.
How old is the name Dillian?
Dillian first appears in US birth records in 1989 — 36 years ago. The typical Dillian alive today was born around 2000, making them about 25 years old. About 600 people named Dillian are estimated to be alive in the US today.
When was the name Dillian most popular?
Dillian peaked in 1992, reaching #1955 nationally. See the whole 1992 chart.
Where it comes from
Origin, sound and short forms
Our story of Dillian
Dill water was an old remedy for colicky babies, and books often say the herb's name comes from a Norse word meaning 'to lull'; it is an attractive idea, but the dictionaries treat it as a guess, and the word's source is uncertain. Dillian was not named for the herb in any case. It came from Dillon and Dylan and the -ian endings of its day. But its first sound is a soft, green one, and that is pleasant company.
Meaningnot established
Not established
Dillian may be Dillon or Dylan with an -ian ending, and nothing records which.
Pronouncing Dillian
DIL-ee-un
Three syllables with the stress on the first.
Nicknames for Dillian
Limited
What the data says
146 years of official birth records
The long climb, and where it stands now
The same years in position rather than babies
- First recorded
- 1989
- Most boys named
- 199241 — the highest on record
- Peak rank
- #1955reached in 1992
- Change vs 2020
- −16.7%5 in 2021, from 6
Rank is a position, a count is a headcount, and they move independently — a name can hold its rank while the number of babies behind it falls. Source: U.S. Social Security Administration.
Dillians among us
people named Dillian are estimated to be alive in the US today
Estimated from SSA birth records and published actuarial life tables. Method
Is it right for you
Questions parents actually ask
Fashion outlook
Dillian sits outside the current charts, and that is its own kind of answer: naming cycles can only date the names they carried up. A name this rare has no decade stamped on it — it cannot go out of fashion, because it was never in.
Based on 146 years of naming cycles. How we read them
The trade-off
- Easy to say.
- Rare, so a Dillian is unlikely to meet another.
- Close to Dillon and Dylan.
- People will write Dillon or Dylan.
- It sounds close to the girls' name Jillian.
- It has no documented meaning of its own.
Nobody names a baby alone.
Put Dillian to the vote.
Add it to a family vote or a couple’s swipe deck — the other person gets one card, a simple answer and room to say why. No app, no account for them.
Only the people you invite can see your list.
Already decided on Dillian? Hide it among decoys and let them guess.
What they receive
Someone added a name to your list
Dillian
Masculine
Frequently asked
- How many Dillians are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 600 people named Dillian are estimated to be alive in the US today.
- How popular is the name Dillian in 2025?
- Dillian is rarely given in the US today — it does not rank in the top 2000 boy names.
- Will my child share the name Dillian with classmates?
- Dillian will almost certainly be the only one in school.
More D names
The most-given names starting with D, all years combined.
David#35 · Daniel#22 · Donald#690 · Dennis#707 · Douglas#807 · Dylan#41 · Danny#628 · Dale#1409
Looking for what else is popular rather than what resembles Dillian? See the current top 100.
Choosing between Dillian and another name?
See them side by side — full stats, history and a gentle verdict.
Compare side by sideIn a hurry? Just pick a winner — one tap, no sign-up, and you see how everyone else voted.
Weighing a whole shortlist? Add the rest in the builder, or settle it with a bracket.
Cast your vote
Which one would you pick?
Your gut first, the numbers after — the split shows once you pick.
US figures from the Social Security Administration. 1880–2025. Data & methodology
No advertising trackers and no data sellinghow we handle your dataindependent and founder-run, about Name Battle