Dempsy: a male name of Irish (Gaelic) origin meaning "This name is an Anglicized form of the Irish surname “Ó Diomasaigh,” meaning “descendant of Díomasaigh”; the latter stems from the Irish adjective “díomasach,” meaning “proud".It derives from the Irish (Gaelic) word "DIOMASACH > Ó DíOMASAIGH".
Dempsy has maintained its appeal as a masculine name in modern times while preserving its Irish (Gaelic) roots. Today, parents are drawn to its meaningful essence of "This name is an Anglicized form of the Irish surname “Ó Diomasaigh,” meaning “descendant of Díomasaigh”; the latter stems from the Irish adjective “díomasach,” meaning “proud" and its cultural richness. This name bridges traditional heritage with contemporary naming trends.
Quick Facts About Dempsy
Quick facts about Dempsy
Origin
Irish (Gaelic)
Gender
Boy name
Popularity
Moderately popular
Researched by Name Doctor Linguistics Team
Our names are verified by professional linguists with expertise in etymology and cultural naming traditions.
Last reviewed: November 2025
Meaning
This name is an Anglicized form of the Irish surname “Ó Diomasaigh,” meaning “descendant of Díomasaigh”; the latter stems from the Irish adjective “díomasach,” meaning “proud.” The family name is originated in the kingdom of “Uí Failghe.” The O’ Dempsey family derives their name from Diummasach, an 11th-century Uí Failge prince of the Máel Ugra clan, aka Cenél Maoilughra.
Etymology & Details
Name Root
DIOMASACH > Ó DíOMASAIGH
How to Pronounce Dempsy
Dempsy is pronounced /ˈdɛm.psi/(English)
Step-by-step pronunciation guide:
Break it into syllables: Dem-psy
Say it like: "DEM-PSY"
Practice saying it naturally a few times
✓Pronunciation verified by linguistic sources
Usage & Popularity
Dempsy is predominantly used in english speaking communities, where it maintains strong cultural connections and traditional significance.
english
Frequently Asked Questions About Dempsy
What does the name Dempsy mean?
Dempsy means "This name is an Anglicized form of the Irish surname “Ó Diomasaigh,” meaning “descendant of Díomasaigh”; the latter stems from the Irish adjective “díomasach,” meaning “proud.” The family name is originated in the kingdom of “Uí Failghe.” The O’ Dempsey family derives their name from Diummasach, an 11th-century Uí Failge prince of the Máel Ugra clan, aka Cenél Maoilughra.". The name comes from DIOMASACH > Ó DíOMASAIGH. This irish (gaelic) name has been passed down through generations, carrying its meaning across different cultures and time periods. Parents who choose Dempsy for boys often connect with the name's meaning of "This name is an Anglicized form of the Irish surname “Ó Diomasaigh,” meaning “descendant of Díomasaigh”; the latter stems from the Irish adjective “díomasach,” meaning “proud.” The family name is originated in the kingdom of “Uí Failghe.” The O’ Dempsey family derives their name from Diummasach, an 11th-century Uí Failge prince of the Máel Ugra clan, aka Cenél Maoilughra." as a quality they hope to see in their child. While not the most common choice, Dempsy's meaningful roots have given it staying power among parents looking for a name with substance.
What is the origin of the name Dempsy?
Dempsy is a irish (gaelic) name. The name traces back to DIOMASACH > Ó DíOMASAIGH. The name remains closely tied to english naming traditions while occasionally appearing in other cultures. The irish (gaelic) meaning "This name is an Anglicized form of the Irish surname “Ó Diomasaigh,” meaning “descendant of Díomasaigh”; the latter stems from the Irish adjective “díomasach,” meaning “proud.” The family name is originated in the kingdom of “Uí Failghe.” The O’ Dempsey family derives their name from Diummasach, an 11th-century Uí Failge prince of the Máel Ugra clan, aka Cenél Maoilughra." reflects values important in the culture where this name first appeared.
Is Dempsy a boy or girl name?
Dempsy is a boy's name. The name has been used for boys across many generations, maintaining its masculine character through different eras and cultures. In irish (gaelic) tradition, Dempsy has historically been given to boys. The meaning "This name is an Anglicized form of the Irish surname “Ó Diomasaigh,” meaning “descendant of Díomasaigh”; the latter stems from the Irish adjective “díomasach,” meaning “proud.” The family name is originated in the kingdom of “Uí Failghe.” The O’ Dempsey family derives their name from Diummasach, an 11th-century Uí Failge prince of the Máel Ugra clan, aka Cenél Maoilughra." carries well for a son, giving the name lasting appeal.
How do you pronounce Dempsy?
Dempsy is pronounced "/ˈdɛm.psi/". This pronunciation follows en language patterns. As a single-syllable name, Dempsy is quick to say and easy to call out. If you're unfamiliar with irish (gaelic) names, listening to a native speaker say Dempsy can help you catch the right rhythm and emphasis.
How popular is the name Dempsy?
Dempsy is somewhat common, familiar to most people. With moderate popularity, Dempsy offers familiarity without being everywhere. It's the kind of name people recognize but don't hear every day. Dempsy's popularity may vary between irish (gaelic) communities and the broader population, where naming trends differ. The name's meaning of "This name is an Anglicized form of the Irish surname “Ó Diomasaigh,” meaning “descendant of Díomasaigh”; the latter stems from the Irish adjective “díomasach,” meaning “proud.” The family name is originated in the kingdom of “Uí Failghe.” The O’ Dempsey family derives their name from Diummasach, an 11th-century Uí Failge prince of the Máel Ugra clan, aka Cenél Maoilughra." likely influences its appeal, as parents often choose names that express values or hopes for their children. Among boys' names, Dempsy holds its own, appealing to parents who value distinctive options.
Where is the name Dempsy commonly used?
Dempsy is used primarily in english naming traditions. Though irish (gaelic) in origin, Dempsy found a home in other cultures where it resonated with local naming preferences. The meaning "This name is an Anglicized form of the Irish surname “Ó Diomasaigh,” meaning “descendant of Díomasaigh”; the latter stems from the Irish adjective “díomasach,” meaning “proud.” The family name is originated in the kingdom of “Uí Failghe.” The O’ Dempsey family derives their name from Diummasach, an 11th-century Uí Failge prince of the Máel Ugra clan, aka Cenél Maoilughra." carries universal appeal, helping explain why different cultures adopted Dempsy into their naming traditions. A child named Dempsy will likely find their name recognized in multiple countries, which can be an advantage for families with international connections or who value global accessibility. Across these cultures, Dempsy is given to boys, maintaining consistent gender association.
Sources: Etymology verified through linguistic research including Oxford Dictionary of First Names, Behind the Name, and academic etymology databases.