MallowbyNames

Keaghan

KEE-gan · Of uncertain origin, likely a modern variant of Keegan or Kegan, possibly derived from Irish Ó Ciagáin meaning 'descendant of the little fiery one'.

Peak popularity
2010
Usually for
Girls & boys
Trend
Declining since 2009

Declining since 2009.

Popularity of Keaghan since 1997

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

91827200020102020Most births 2009GirlsBoys
GirlsBoys
Data table (by decade)
DecadeGirlsBoys
1990s011
2000s67141
2010s28147
2020s05

Meaning & origin

Keaghan first entered U.S. birth records in 1997, a modern respelling of Keegan that never cracked the top 1000. Its peak year came in 2010, when it reached its highest recorded usage, but since then its trajectory has been falling, with annual counts declining steadily from 2009 onward. Parents drawn to Keaghan typically appreciate the familiar sound of Keegan with a distinctive spelling, though the name remains rare and unranked in the latest data. As a unisex choice, Keaghan has been recorded for both boys and girls, reflecting a broader trend toward surname-style names with Irish roots.

Keaghan is a modern respelling of Keegan, itself an anglicization of the Irish surname Ó Ciagáin, meaning 'descendant of the little fiery one' (from ciag 'fiery' plus a diminutive suffix). The name first appeared in U.S. records in 1997 and saw a peak in popularity in 2010, likely influenced by similar-sounding names like Keegan and Kegan.

Nicknames & variants

Nicknames: Keag, Keagy

Sibling names for Keaghan

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

Sisters: Kiera, Maeve, Brielle, Ainsley, Teagan

Brothers: Keegan, Kellan, Ronan, Declan, Cael

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

K is for Keaghan, our favorite little person.

“K is for Keaghan…”

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

Make Keaghan's book

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

Questions parents ask

What does the name Keaghan mean?
The meaning of Keaghan is uncertain. It is likely a modern variant of Keegan, which may derive from the Irish surname Ó Ciagáin, meaning 'descendant of the little fiery one'.
How popular is the name Keaghan currently?
Keaghan has not ranked in the U.S. top 1000 since its peak year of 2010, and its usage has been falling steadily since 2009. It remains a rare name, with no recent rank data available.
Is Keaghan a boy's or girl's name?
Keaghan is considered unisex, though it is more commonly used for boys. The name first appeared in U.S. records in 1997 and has been given to both genders.