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Caolan

Boy · KAY-lan · Irish

Big in ScotlandBig in Northern Ireland

Caolan is a boys' name of Irish origin, meaning “slender”. In 2025 it ranked 820th for boys in the UK (44 babies).

What does Caolan mean?

Irish: anglicised spelling of Caolán, from caol

“slender”

Caolán is an old Irish name formed from caol, slender, plus a diminutive ending, and was borne by several early saints.

Say it
KAY-lan

More on Wiktionary.

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

Caolan is a boys' name. In 2025, it was given to 44 boys in the UK. Too few girls were given it to be listed.

How popular is Caolan in the UK?

Rank in 2025
#820among boys
Babies in 2025
44about 1 in 6,800 boys
Five-year trend
Steadyup 1% in five years
Same name in a class
under 1%chance among 15 boys

In 2025, 44 boys in the UK were named Caolan, making it the 820th most popular name for boys. Five years earlier, in 2020, it was 661st. Its busiest year was 1997, with 127 boys.

Half of all the boys named Caolan in the UK since 1996 were born between 2001 and 2015, the years shaded on the chart below.

In 2025, 302 boys in the UK were given Caolan or a name that sounds the same. With every name's spellings counted this way, that ranks #196, up from #820 for this spelling alone.

Among boys in 2025, it was 1,537th in England and Wales, 762nd in Scotland and 99th in Northern Ireland.

1996Busiest: 127 in 19972025
Caolan in the UK, year by year
YearBoysRank
202544#820
202447#790
202355#710
202243#813
202156#707
202058#661
201944#788
201842#842
201760#657
201665#618
201565#615
201468#591
201359#640
201274#549
201185#483
201072#541
200953#664
200876#512
200774#505
200675#474
200569#463
200471#429
200379#374
200280#357
200187#345
200082#353
1999114#282
1998120#265
1997127#260
199614#1,021

Names like Caolan

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

Other spellings of Caolan

Names related to Caolan

More Irish names