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Kilian

Gender
Boy
Say it
KIL-ee-an
Origin
Irish
UK rank, 2025
#1,286 for boys
US rank, 2025
#1,166 for boys

Kilian is a boys' name of Irish origin, meaning “possibly little church, or strife”. In 2025 it ranked 1,286th for boys in the UK (23 babies) and 1,166th for boys in the US (177 babies).

What does Kilian mean?

Irish: anglicised form of Irish Cillian

“possibly little church, or strife”

St Kilian was a 7th-century Irish missionary martyred at Würzburg, where he is patron saint, so the name is also used in Germany.

More on Wiktionary.

Is Kilian a girl's or a boy's name?

Kilian is a boys' name. In 2025, it was given to 23 boys in the UK and 177 boys in the US. Too few girls were given it to be listed.

How popular is Kilian in the UK?

Rank in 2025
1,286th among boys
Babies in 2025
23 about 1 in 13,000 boys
Five-year trend
Steady down 10% in five years
Same name in a class
under 1% chance among 15 boys

In 2025, 23 boys in the UK were named Kilian, making it the 1,286th most popular name for boys. Five years earlier, in 2020, it was 1,179th. Its busiest year was 2021, with 26 boys.

Half of all the boys named Kilian in the UK since 1996 were born between 2012 and 2022, the years shaded on the chart below.

In 2025, 538 boys in the UK were given Kilian or a name that sounds the same. With every name's spellings counted this way, that ranks #119, up from #1,286 for this spelling alone.

Among boys in 2025, it was 1,225th in England and Wales.

1996Busiest: 26 in 20212025
Kilian in the UK, year by year
YearBoysRank
202523#1,286
202419#1,470
202320#1,399
202216#1,639
202126#1,166
202025#1,179
201920#1,351
201824#1,210
201710#2,306
201612#2,007
201512#1,990
20147#2,843
20137#2,792
20129#2,382
20115#3,446
20105#3,478
20090–
20087#2,616
20076#2,873
20063#4,204
20058#2,090
20040–
20035#2,574
20027#1,900
20014#2,714
20000–
19990–
19988#1,569
19971#3,857
19966#1,840

How popular is Kilian in the US?

Rank in 2025
1,166th among boys
Babies in 2025
177 about 1 in 9,600 boys
Five-year trend
Rising up 39% in five years
Same name in a class
under 1% chance among 15 boys

In 2025, 177 boys in the US were named Kilian, making it the 1,166th most popular name for boys. Five years earlier, in 2020, it was 1,222nd. Its busiest year was 2023, with 212 boys. It first appears in the records in 1970.

Half of all the boys named Kilian in the US since 1880 were born between 2011 and 2022, the years shaded on the chart below.

In 2025, 2,017 boys in the US were given Kilian or a name that sounds the same. With every name's spellings counted this way, that ranks #200, up from #1,166 for this spelling alone.

1970Busiest: 212 in 20232025
Kilian in the US, year by year
YearBoysRank
2025177#1,166
2024209#1,053
2023212#1,031
2022161#1,220
2021168#1,170
2020154#1,222
2019132#1,354
2018145#1,261
2017162#1,159
2016161#1,180
2015132#1,334
201491#1,679
201341#2,802
201259#2,208
201140#2,903
201043#2,786
200947#2,622
200844#2,752
200736#3,133
200635#3,082
200526#3,611
200432#3,070
200321#3,971
200220#4,038
200132#2,859
200022#3,634
199925#3,178
199821#3,482
199720#3,450
199625#2,906
199525#2,842
199420#3,320
199320#3,240
199228#2,527
199116#3,629
199018#3,303
198912#4,265
198810#4,445
19870–
19860–
19850–
19846#5,557
19830–
19825#6,383
19810–
19800–
19790–
19786#5,056
19776#5,121
19766#4,933
19758#3,939
19740–
19730–
19726#4,438
19710–
19705#4,722

Names like Kilian

Names given in the same years and the same naming tradition, with a similar sound.

Other spellings of Kilian

Names related to Kilian

More Irish names

Every Irish name

Sources

Figures from Baby names in England and Wales (Office for National Statistics), Babies' first names (National Records of Scotland), Baby names (Northern Ireland Statistics and Research Agency) and Popular Baby Names (US Social Security Administration). Nameling last updated them on 20 October 2026. How the figures are worked out, and the data to download.

To cite this page: Nameling, “Kilian: name meaning, origin and popularity”, https://www.nameling.co.uk/names/kilian, updated 20 October 2026.