Kilian
Boy name · Celtic · Irish · Latin · Scottish
- US rank
- #1,166
- Syllables
- 2
- Peak
- #1,031 in 2023
177 babies were named Kilian in the US in 2025. It has climbed 56 places in five years.
Found on lists
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US births per million boys, 1970–2025
Most popular states (2025)
Similar names
Popularity: U.S. Social Security Administration (babies with 5+ births per year).
Did you know?
A few things about Kilian you might not know, from US birth records. Handy for convincing a partner, or a grandparent.
- How commonAbout 1 in every 9,653 baby boys born in the US in 2025 was named Kilian, 177 babies in all. In a typical school of 500 kids, your Kilian would very likely be the only one.
- HistoryKilian first shows up in US birth records in 1970, the first year at least 5 babies got it. It has been in use for 55 years since.
- Best yearIts best year was 2023, when it reached #1,031.
- Then vs nowKilian is 9.3× more common today than it was in 2000. In 2000 it was given to about 1 in 89,286 baby boys; in 2025, about 1 in 9,653.
- TrendKilian has climbed 56 places in the US rankings over the last five years and now sits at #1,166. Fast risers like this often keep climbing, so expect to hear it more.
- Where it's lovedKilian is most popular in Maryland, where it ranks #634, followed by New Jersey (#707) and Virginia (#798). It's in the top 1,000 in 7 states.
About the name Kilian
Kilian is a boy name of Celtic, Irish and Latin origin. It has 6 letters and 2 syllables, starting with K and ending in “-ian”. US birth records list Kilian for boys from 1970 to 2025, in 46 of those 56 years. Its best year was 2023, when it ranked #1,031 among boy names. In 2025 it ranked #1,166, with 177 babies.
Origin:Celtic namesIrish namesLatin namesScottish names
| Decade | Babies per million | About 1 in |
|---|---|---|
| 1970s | 2.3 | 440,529 boys |
| 1980s | 1.7 | 578,035 boys |
| 1990s | 11 | 89,127 boys |
| 2000s | 16 | 63,573 boys |
| 2010s | 54 | 18,577 boys |
| 2020s | 104 | 9,582 boys |
Other spellings of Kilian
More Celtic boy names
- Unisex name: Owen · well-born
- Unisex name: Logan · little hollow
- Unisex name: Rowan · little red-haired one
- Unisex name: Nolan · descendant of Nuallán
- Unisex name: Cameron · crooked nose
- Boy name: Ian · God is gracious
- Unisex name: Gael · a Gael
- Boy name: Arthur · possibly bear
Questions about the name Kilian
What is the origin of the name Kilian?
Kilian has Celtic, Irish, Latin, Scottish roots in our records. Other Celtic names include Owen, Logan, Rowan.
Is Kilian a boy or girl name?
Kilian is a boy name.
How popular is the name Kilian?
Kilian ranked #1,166 for US boys in 2025, given to 177 babies. Its best year was 2023 (#1,031).