MallowbyNames

Dempsey

DEMP-see · proud descendant; one who is haughty or proud

2025 rank (boys)
#2,991
Babies named in 2025
41
Peak popularity
1919
2025 frequency
1 in 41,660 boys
Usually for
Girls & boys
Trend
Declining since 2014

Declining since 2014, #2,991 for boys today.

Popularity of Dempsey since 1880

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

36721081880192019602000Most births 1921GirlsBoys
GirlsBoys
Data table (by decade)
DecadeGirlsBoys
1880s042
1890s042
1900s067
1910s0314
1920s11704
1930s0403
1940s13398
1950s0368
1960s0235
1970s0181
1980s0139
1990s34165
2000s46199
2010s257674
2020s189318

Meaning & origin

Dempsey, an anglicized form of the Irish surname Ó Díomasaigh, carries a meaning rooted in pride and haughtiness. While it has been in use as a given name since at least 1880, it reached its peak popularity in 1919, ranking among the top 1,000 names for boys. Since 2014, its usage has been declining, yet it remains a distinctive choice. Dempsey is most common in Indiana and Texas, reflecting its enduring appeal in certain regions. As a surname-turned-first-name, it fits a modern trend of using family names, though its Irish heritage gives it a traditional depth.

Dempsey is an anglicized form of the Irish surname Ó Díomasaigh, meaning 'descendant of Díomasach'. The personal name Díomasach derives from the Irish word 'díomas', meaning 'pride' or 'haughtiness'. Originally a surname borne by a leading sept in County Offaly, Dempsey has been used as a given name since the late 19th century, particularly in Ireland and among the Irish diaspora.

Where Dempsey is most popular

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

Nicknames & variants

Nicknames: Dem, Demp

Sibling names for Dempsey

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

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

D is for Dempsey, our favorite little person.

D is for Dempsey…”

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

Make Dempsey's book

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

Questions parents ask

What does the name Dempsey mean?
Dempsey means 'proud descendant' or 'descendant of the proud one,' from the Irish surname Ó Díomasaigh.
How popular is the name Dempsey right now?
As of 2025, Dempsey ranks 2,991 in the U.S., with approximately 1 in 41,660 newborns given the name.
Is Dempsey a boy or girl name?
Dempsey is traditionally masculine but has been used as a unisex name in recent years.