MallowbyNames

Dempsy

DEMP-see · Of uncertain origin; possibly a variant of Dempsey, an Irish surname meaning 'proud' or 'haughty'.

Peak popularity
1919
Usually for
Boys
Trend
Holding steady

Holding steady.

Popularity of Dempsy since 1916

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

51015192019602000Most births 1919Boys
Data table (by decade)
DecadeBoys
1910s26
1920s66
1930s13
1940s14
1950s0
1960s0
1970s0
1980s0
1990s0
2000s0
2010s0
2020s0

Meaning & origin

Dempsy is a rare given name, likely an alternative spelling of the Irish surname Dempsey. First recorded in the U.S. in 1916, its peak year was 1919, though it never achieved widespread use. The name belongs to the 1910s decade and has remained stable in obscurity, with no recorded top states or notable rise in popularity. While the etymology points to a proud lineage, Dempsy itself has not carried that legacy into common usage, making it a distinctive choice for parents seeking an uncommon but historically grounded name.

Dempsy is a rare given name likely derived from the Irish surname Dempsey, which is an Anglicized form of the Gaelic Ó Díomasaigh, meaning 'descendant of Díomasach,' a byname for a proud or haughty person. The name has seen limited use as a first name, with sporadic appearances in early 20th-century U.S. records.

Nicknames & variants

Nicknames: Demp

Variants: Dempsey, Dempster

Sibling names for Dempsy

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

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

D is for Dempsy, our favorite little boy.

D is for Dempsy…”

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

Make Dempsy's book

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

Questions parents ask

What does the name Dempsy mean?
Dempsy likely stems from the Irish surname Dempsey, which means 'proud' or 'haughty.' Its exact meaning as a first name is uncertain.
How popular is Dempsy?
Dempsy has never ranked in the U.S. top 1000. Its peak usage was in 1919, when it was given to a handful of babies. In 2025, it remained rare, with fewer than 5 births recorded.
Is Dempsy a boy or girl name?
Dempsy is typically used for boys, though it is occasionally used for girls. In U.S. records, it has been overwhelmingly male.