MallowbyNames

Cullin

KULL-in · Of uncertain origin; possibly a variant of Cullen, derived from the Irish surname Ó Cuilinn meaning 'descendant of Cuileann', a name possibly meaning 'holly'.

Peak popularity
2001
Usually for
Boys
Trend
Declining since 2000

Declining since 2000.

Popularity of Cullin since 1917

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

81523192019602000Most births 2000Boys
Data table (by decade)
DecadeBoys
1910s6
1920s0
1930s0
1940s0
1950s0
1960s0
1970s5
1980s11
1990s156
2000s121
2010s99
2020s5

Meaning & origin

Cullin is a rare Irish-derived name that has never entered the U.S. top 1000, making it a distinctive choice for parents seeking something uncommon. First recorded in 1917, its popularity peaked in 2001, and since 2000 its usage has been gradually declining. Despite its rarity, Cullin fits well with contemporary trends favoring Irish surnames and short, strong-sounding names. With no single dominant origin or meaning clearly established, it carries an air of mystery, but its connection to the more familiar Cullen gives it a grounded feel.

Cullin is likely a variant of the Irish name Cullen, which itself comes from the Gaelic surname Ó Cuilinn. The root 'cuileann' means 'holly', a plant symbolizing protection in Celtic tradition. The name has been used as a given name in the United States since at least the early 20th century, though it has always been uncommon. Its peak popularity occurred in 2001, with a gradual decline since.

Nicknames & variants

Nicknames: Cully, Lin

Variants: Cullen, Cullinan

Sibling names for Cullin

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

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

C is for Cullin, our favorite little boy.

C is for Cullin…”

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

Make Cullin's book

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

Questions parents ask

What does the name Cullin mean?
The meaning of Cullin is uncertain. It is likely a variant of Cullen, which may derive from an Irish surname meaning 'descendant of Cuileann', possibly 'holly'.
How popular is the name Cullin?
Cullin has never been a common name in the United States, and as of 2025, it does not rank in the top 1000 names. Its peak popularity was in 2001.
Is Cullin a boy or girl name?
Cullin is predominantly used as a boy's name.