MallowbyNames

Kielan

KEE-lan · of uncertain origin; possibly a variant of Keelan or Caelan

Peak popularity
2007
Usually for
Boys
Trend
Holding steady

Holding steady.

Popularity of Kielan since 1989

Babies named Kielan per year in U.S. Social Security records.

47111990200020102020Most births 2007Boys
Data table (by decade)
DecadeBoys
1980s6
1990s21
2000s35
2010s37
2020s11

Meaning & origin

Kielan is a modern Irish-inspired name that first appeared in U.S. records in 1989, reflecting a broader trend of adapting surnames as given names. Its usage peaked in 2007, after which it has stabilized at low frequency. The name is most likely a respelling of Keelan, itself derived from the Irish Ó Caoilfhinn, meaning 'descendant of Caoilfhinn.' Despite its uncertain popularity in top states, Kielan remains a distinctive choice, often chosen by parents seeking a name with Irish roots but a contemporary feel.

Kielan is a modern respelling or variant of names like Keelan, which derives from the Irish surname Ó Caoilfhinn, meaning 'descendant of Caoilfhinn' (slender and fair). The name emerged in the United States in the late 1980s, reflecting a trend of adapting Irish surnames as first names. Its spelling with 'ie' distinguishes it from the more common Keelan.

Nicknames & variants

Nicknames: Kiel, Ki

Variants: Keelan, Caelan, Kelan, Khalan

Sibling names for Kielan

Names that share Kielan's style, for a brother or sister.

Sisters: Maeve, Saoirse, Ciara, Niamh, Alana

Brothers: Declan, Cian, Eoin, Ronan, Kieran

A parent animal hugging its little one, the personalized name page

K is for Kielan, our favorite little boy.

K is for Kielan…”

In a Mallowby alphabet book, Kielan's letter becomes Kielan's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Kielan's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does Kielan mean?
Kielan is of uncertain meaning but is likely a variant of Keelan, which may mean 'slender and fair' from the Irish root 'caol fionn'.
How popular is Kielan today?
Kielan is a rare name in the United States. It first appeared in 1989 and peaked in 2007. As of 2025, it remains uncommon, never ranking in the top 1000.
Is Kielan a boy or girl name?
Kielan is primarily used for boys, though it is occasionally given to girls.