MallowbyNames

Kerrigan

KERR-ih-gan · Of uncertain origin; possibly from the Irish surname Ó Ciaragáin, meaning 'descendant of Ciaragán' (a diminutive of 'ciar', meaning 'dark' or 'black').

2025 rank (girls)
#4,546
Babies named in 2025
30
Peak popularity
2012
2025 frequency
1 in 53,576 girls
Usually for
Girls
Trend
Declining since 2013

Declining since 2013, #4,546 for girls today.

Popularity of Kerrigan since 1972

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

3979118198020002020Most births 2012Girls
Data table (by decade)
DecadeGirls
1970s5
1980s6
1990s444
2000s883
2010s884
2020s238

Meaning & origin

Kerrigan first appeared on the U.S. baby name charts in 1972, a relatively late arrival for a name derived from an old Irish surname. It saw modest use through the 1990s, then climbed steadily to its peak at rank 4546 in 2012, a year that saw its highest number of births. Since 2013, its trajectory has been falling, reflecting a typical pattern for names that spike from pop culture influence. In its peak decade of the 2010s, Kerrigan was most popular in Illinois, its only top state. Despite its decline, the name retains a distinctive sound, blending the popular 'K' initial with a strong Irish heritage. As of 2025, it is a rare choice given to roughly 1 in every 53,576 girls, maintaining a unique but recognizable feel.

Kerrigan is an Anglicized form of the Irish surname Ó Ciaragáin, which comes from the personal name Ciaragán, a diminutive of Ciaran (from 'ciar' meaning 'dark'). The surname was historically common in County Galway and County Donegal. As a given name, it emerged in the late 20th century, likely influenced by the surname and popularized by the character Kerrigan (the Queen of Blades) in the 1998 video game StarCraft.

Where Kerrigan is most popular

Births per 100,000 girls by state, 2025. The lightest shade means too few recorded births.

Nicknames & variants

Nicknames: Kerri, Keri, Riggan

Variants: Kerigan, Kerigan

Sibling names for Kerrigan

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

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

K is for Kerrigan, our favorite little girl.

K is for Kerrigan…”

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

Make Kerrigan's book

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

Questions parents ask

What does the name Kerrigan mean?
The name Kerrigan is of Irish origin and is an Anglicized form of the surname Ó Ciaragáin, meaning 'descendant of Ciaragán,' a personal name from 'ciar' meaning 'dark' or 'black.'
How popular is the name Kerrigan?
Kerrigan is a rare name. As of 2025, it ranked #4546 in the United States, with about 1 in 53,576 newborn girls receiving the name. Its peak year was 2012, and its use has been falling since 2013.
Is Kerrigan a boy's or girl's name?
Kerrigan is used predominantly for girls, though it can be unisex. In recent U.S. data, it is almost exclusively given to girls.